F.Sc Biology Chapter No.14 Transport FIRST YEAR ONLINE MCQ

Biology Chapter No. 14 Transport 1st Year

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Biology – 1st Year
Chapter Name : Transport
Chapter No. 14
Question Type : Multiple Choice Questions [MCQ’s]
Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.

Book Name : Biology
Chapter No. 14
Chapter Name : Transport
Total MCQ from Text Book : 252
Book Version : 2021
Published By : Punjab Text Book Board Lahore
Approved By : Govt of the Punjab and Federal Ministry for Education
Test Type : MCQ’s
Exam conduct By : Inter Boards of Sindh, KPK, Balochistan, AJK, Gilgit Baltistan, Punjab & Federal
Class / Grade : 11 ( F.Sc. Intermediate)
Total Marks : 252
Total Time : 252 minutes

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GRADE 11 - BIOLOGY CHAPTER NO.14 Transport

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GRADE 11 - BIOLOGY CHAPTER NO.14 Transport

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Question 1

_______ of epidermal cells of root is / are fully permeable to H₂0:

A	Cell wall
B	Both a+b
C	Cell membrane
D	Tonoplast

Question 2

Most of the proteins in human plasma are synthesized in:

A	Bone marrow
B	Lymphocytes
C	Liver
D	Spleen

Question 3

The water molecules move along the cell walls of xylem vessels due to imbibition, this_________ was suggested by:

A	Kranz
B	Sacks
C	Taiz & Zeiger
D	Dixon

Question 4

Lymph______ most closely resembles with

A	Plasma
B	Interstitial fluid
C	Blood
D	URINE

Question 5

The phenomenon associated with root pressure is:

A	Inhibition
B	Cohesion
C	Tension
D	Guttation

Question 6

The white blood cells that give rise to macrophages which destroy larger particles by phagoytosis are

A	Monocytes
B	Neutrophils
C	Lymphocytes
D	Basophils

Question 7

The blood vessel that transports blood from body cells toward heart Is a

A	Arteriole
B	Vein
C	Artery
D	Venule

Question 8

Which of the following cells store surplus food?

A	Chlorenchymatous cells
B	Parenchymatous cells
C	Meristematic cells
D	Selerenchymatous cells

Question 9

A muscular wall is abscent in

A	Capalaries
B	Arterioles
C	Vein
D	Venule

Question 10

In earthworm the sub neural vessel communicate with which one of tho following

A	Commissural blood vessel
B	Ventral blood vessel
C	Dorsal blood vessel
D	Heart

Question 11

The osmotic pressure of blood Is maintained by

A	Plasma ions
B	Plasma salts
C	Plasma antibodies
D	Plasma proteins

Question 12

Spleen is

A	Reproductive
B	Celluloid
C	Lymphoid
D	Haemopoeitic

Question 13

The normal pH of human blood is:

A	6.4
B	7.4
C	7.6
D	7

Question 14

The blood is filtered at

A	Lymph nodes
B	Liver
C	Bone marrow
D	Spleen

Question 15

Which of the following is true about mammals?

A	None
B	They donot have aortic arch
C	They have left aortic arch only
D	They have right aortic mammals

Question 16

Water potential of pure water is:

A	None
B	Zero
C	Negative
D	One

Question 17

Thrambus is also known as:

A	Lipid
B	Clot
C	Plague
D	Block

Question 18

Systole causes:

A	Exit of blood from heart
B	Entry of blood into heart
C	Exit of blood from ventricles
D	Entry of blood into lungs

Question 19

The volume of dry seeds may increase upto 200 times after absorbing water by

A	Hypertension
B	Myocardial infarction
C	Osmosis
D	Oedema

Question 20

The process of movement of material within a cell due to involvement of contractile proteins:

A	Endocytosis
B	All of these
C	Cytoplasmic streaming
D	Exocytosis

Question 21

Femoral artery supply blood to:

A	Rectum
B	Hind limb
C	Dorsal regions of thigh
D	Ventral region of thigh

Question 22

One of the following hormones stops active transport of K ions to the guard cells

A	Giberrellin
B	Abcissic acid
C	Ethene
D	Auxin

Question 23

The wave of blood, pressure or pulse due to heartbeat can be detected in which of the following:

A	Capillaries
B	Veins
C	Arteries
D	All of these

Question 24

Lymph vessels are united to form

A	Lymph heart
B	Thoracic duct
C	Jugular vein
D	Cisternal ducts

Question 25

Water reaches xylem in root by which path?

A	Plasmalema
B	Both a & b
C	Symplast
D	Apoplast

Question 26

Which layer in arteries can withstand higher blood pressure during ventricular systole?

A	Middle layer
B	All these
C	Outer layer
D	Inner layer

Question 27

starch-sugar hypothesis explaining the opening and closing of was suggested by

A	Van Mohl
B	Dixon
C	E Munch
D	Melvin Calvin

Question 28

In a human, which of the following vessels is the blood pressure the highest

A	Pulmonary vein
B	Aorta
C	Superior vena cava
D	In ferior vena cava

Question 29

Which is included in agranulocytes?

A	Basophills
B	Lymphocytes
C	Neutrophils
D	Eosinophils

Question 30

Lenticels are present in:

A	Stem
B	Root
C	Leaves
D	Flowers

Question 31

Which hypothesis explains opening & closing of stomata?

A	Pressure flow hypothesis
B	Influx of K₊ ions
C	Starch sugar hypothesis
D	Both a & b

Question 32

Leucocytes involved in immune response by producing antibodies is called as :

A	Monocytes
B	Lymphocytes
C	Basophils
D	Neutrophils

Question 33

The composition of materials flowing in phloem foregoing has been studied by using:

A	Insect
B	Both a & c
C	Stylets
D	Aphid

Question 34

Thalassaemia is a genetically transmitted abnormality of

A	Haemoglobin
B	Both a & b
C	Myoglobin
D	Immunoglobin

Question 35

Which of the following is true about mammals?

A	They have left and right aortic arches
B	They have right aortic arch only
C	They do not have aortic arch
D	They have left aortic arch only

Question 36

A substance that inhibits blood clotting is:

A	Fibrinogen
B	Fibrin
C	Heparin
D	Thrombin

Question 37

Hardning of the artries due to deposition of cholesterol is called

A	Atherosclerosis
B	Embosis
C	Arteriosclerosis
D	THrombosis

Question 38

Which of the following has no muscular wall?

A	Artery
B	Arteriode
C	Capillary
D	Vein

Question 39

Mycorrhizae are present in ______ families of higher plants.

A	95%
B	70%
C	90%
D	50%

Question 40

Haemoglobin molecule in most cases, does not have ?-chain in it, instead F-chain is present in;

A	Oedema
B	Anaemia
C	Thalassaemia
D	Leucaemia

Question 41

The renal vein brings the impure blood from

A	Kidney
B	Lungs
C	Liver
D	Brain

Question 42

How many layers are present in wall of the heart of man:

A	None
B	4
C	3
D	2

Question 43

The number of which of the following increases during allergic diseases

A	Basophills
B	Eosinophills
C	Lymphocytes
D	Neutrophills

Question 44

The minerals moves down the concentration gradient through plasmodesmata, the process is:

A	Active transport
B	Diffusion
C	Apoplast pathway
D	Symplast pathway

Question 45

Pore like sites in the cork layer of bark at which gaseous exchanve can take place are

A	Hydathodes
B	Stomata
C	Cuticle
D	Lenticels

Question 46

One complete Heart beat consists of one systole and one diastole, and last for about

A	0.8 Seconds
B	0.5 Seconds
C	0.2 Seconds
D	1.0 Seconds

Question 47

Uptake of minerals by root cell is:

A	Passive
B	Active
C	Both a & b
D	None

Question 48

Which of the following has falling blood pressure in them?

A	Veins
B	Arteries
C	Capillaries
D	All of these

Question 49

Blood platelets are fragments of large cells called

A	leucocyte
B	Granulocyte
C	Erythrocyte
D	Megakaryocyte

Question 50

The cation required in coagulation is:

A	Ca
B	K
C	Zn
D	Na

Question 51

About 54% of total transpiration takes place through

A	Cuticle
B	Stomata
C	Hydathodes
D	Lenticels

Question 52

The only cells of the leaf epidermis that contain chloroplasts are

A	Guard cells
B	All of these
C	Epidermis proper cells
D	Subsidiary cells

Question 53

Hb Is found dissolved In plasma of

A	Earthworm
B	Birds
C	Man
D	Frog

Question 54

A rye plant less than 1m tall has 14 million branch roots of combined length of______:

A	Over 600 kilometers
B	Over 600 meters
C	600 meters
D	600 k meters

Question 55

The shrinkage of protoplast of a cell

A	Incipient plasmolysis
B	Plasmolysis
C	Deplasmolysis
D	Guttation

Question 56

Air Space between Mesophyll Cells of a leaf comprises____of total volume of leaf:

A	30%
B	40%
C	50%
D	20%

Question 57

Lymph nodes are present in which of the following regions in humans:

A	Neck region
B	Axilla
C	Groins
D	All of these

Question 58

In frog the oxygenated blood is carried to left auricle by

A	Pulmonary artery
B	Precaval
C	Pulmonary - vein
D	Postcaval

Question 59

The change in pH of guard cells is brought about by the:

A	Accumulation of glucose
B	Accumulation of HCl
C	Accumulation of starch
D	Change in CO₂ conc

Question 60

Theory providing explanation of flow of water and minerals upwards from roots to leaves is provided by:

A	Ernst Munch
B	Dixon
C	Sacks
D	White

Question 61

Solid chain like column of HO molecules in xylem does not break during creeping up due to

A	Adhesion
B	Imbibition
C	Cohesion
D	Tension

Question 62

Passive theories of transport include:

A	All of foregoing
B	E.Munch Theory
C	Diffusion
D	Pressure - flow Theory

Question 63

Pace maker is situated in heart:

A	In the wall of right atrium
B	On interventricular septum
C	In the wall of left atrium
D	On interauricular septum

Question 64

Lenticels are present in_________of stem of some plants:

A	Epidermis
B	Xylem
C	Cork
D	Bark

Question 65

The uncontrolled production of leucocytes result in:

A	Thalassaemia
B	Odema
C	Hypertension
D	Blood cancer

Question 66

Cuticle make up of________ show least rate of cuticular transpiration

A	Pectin
B	Lignin
C	Cutin
D	Chitin

Question 67

All of following have closed blood circulatory system except:

A	Annelids
B	Cephalopod
C	Echinoderms
D	Tunicates

Question 68

Lenticular transpiration accounts for:

A	7-10%
B	95%
C	2-3%
D	1-2%

Question 69

If pressure greater than atmospheric pressure is applied to pure water or a solution, its water potential.

A	Remains uncharged
B	None
C	Increases
D	Decreases

Question 70

In cockroach heart lies in

A	Perivisceral sinus
B	Perineural sinus
C	Pericardial sinus
D	Haemocoel

Question 71

Both erythroctes and leucosytes are formed In

A	Lymph nodes
B	Arterial walls
C	Thymus
D	Bone marrow

Question 72

The pace maker of human heart is

A	Tricuspid valve
B	SA node
C	AV node
D	SV node

Question 73

By volume of the blood, in a normal person, plasma constitutes about:

A	55%
B	15%
C	25%
D	75%

Question 74

By active transport roots mostly take up tho materials:

A	Both a & c
B	None
C	Most of ions
D	Water

Question 75

One cubic millimeter of human male blood contains RBC:

A	5-5.5 millions
B	3-3.5 millions
C	6-6.5 millions
D	4-4.5 millions

Question 76

The heart of reptiles and all other amniotes practically function as

A	Three chambered
B	Two chambered
C	Four chambered
D	Single chambered

Question 77

Diseases like pneumonia, tuberculosis and emphysema lead to one of following.

A	Thrombus formation
B	Hypertension
C	Heart attack
D	Stroke

Question 78

The upward movement of sap through the xylem is;

A	Plasmolysis
B	Guttation
C	Deplasmolysis
D	Ascent of sap

Question 79

The pressure exerted by the protoplast against the cell wall:

A	Turgour pressure
B	H₂O pressure
C	Pressure potential
D	Osmotic pressure

Question 80

Which one of the following is not a significant point of transpiration:

A	Gaseous exchange
B	Cooling effect
C	Distribution of sugars
D	Mineral distribution

Question 81

Sieve tube cells and companion cells communicate with each other through:

A	Plasmodesmata
B	Casparian strip
C	Sieve pores
D	Cell membranes

Question 82

A serum containing antibodies is called

A	Lymph
B	Antiserum
C	Antigen-antibody complex
D	Antigen

Question 83

Which one of the following can narrow the diameter of a capillary?

A	Adrenaline
B	Nervous stimulation
C	Acetylcholine
D	Histamine

Question 84

The arterioles divide repeatedly to form a dense network of microscopic vessels between the cells of a tissue. These final branches are

A	Veins
B	Aorta
C	Venules
D	Capillaries

Question 85

Bean seed shaped cells in plants are:

A	Guard cell
B	Trachieds
C	Mesophyll
D	None

Question 86

In which of the following the every cell is in direct contact with a capillary

A	Stomach
B	Pancreas
C	Small intestine
D	Liver

Question 87

The uncontrolled production of white blood cells result in:

A	Oedema
B	Asthma
C	Thalassaemia
D	Leucaemia

Question 88

Guttation occurs in plants through:

A	Cuticle
B	Lenticels
C	Hydathods
D	Stomata

Question 89

Blood flows at a rate of 400-500 mm per second in which of the following.

A	Aorta
B	Arterioles
C	Arteries
D	Capillaries

Question 90

lmbibitions is absorption of water by:

A	All of above
B	Cellulose
C	Pectin
D	Lignin

Question 91

Three chambered hearts is present in:

A	Invertebrates
B	Amphibians
C	Earthworm
D	Planaria

Question 92

To which factor transpiration is inversely proportionally:

A	Wind
B	Light
C	Humidity
D	Temperature

Question 93

Which of the following environmental factors affect the rate of transpiration?

A	Availability of soil water
B	All of these
C	Humidity and vapour pressure
D	Wing

Question 94

In conduction of impulse from the S.A mode to (A)V node, there is a delay of about.

A	0.8 sec
B	0.15 sec
C	0.20 sec
D	0.4 sec

Question 95

The caspariin stripi are present in

A	Cells of phloem
B	Cortex cells of roots
C	Cells of pericycle
D	Endodermis cells of root

Question 96

Antibodies are manufactured by

A	Spermatocytes
B	T.lymphocytes
C	Erythrocytes
D	B.lymphocytes

Question 97

A substance produce by basophils that inhibits blood clotting is:

A	Fibrinogen
B	Heparin
C	Globulin
D	Histamine

Question 98

Femoral artery supply blood to:

A	Dorsal regions of thigh
B	Rectum
C	Ventral region
D	Hind limb

Question 99

Passive immunity is developed by injecting:

A	Antibiotic
B	Antiserum
C	Serum
D	Vaccine

Question 100

The plasma proteins constitute percent by weight of plasma:

A	7-9%
B	9-11%
C	11-13%
D	13-15%

Question 101

_____is incorrect about guard cells:

A	Surrounds stoma
B	Bean shaped
C	Connected to surrounding cells by plasmodesmata
D	Have chloroplasts

Question 102

Double circuit heart is a characteristic of:

A	Birds
B	Mammals
C	All of above
D	Reptiles

Question 103

Which one of the following organs can be called a sort of blood bank

A	Heart
B	Lungs
C	Liver
D	Spleen

Question 104

Closely associated with root pressure is phenomenon called:

A	Imbibition
B	Guttation
C	Hydathods
D	Plasmolysis

Question 105

Leaf having stomata both on lower and upper epidermis:

A	Dorsiventral leaf
B	Apical and basal leaf
C	Bilateral leaf
D	Isobilateral leaf

Question 106

What is an antigen?

A	It is a toxic substance
B	It is a protein
C	It is a blood group
D	It is a Phospholipid

Question 107

Open blood circulatory system is not found in:

A	Arthopods
B	Annelids
C	Mollusca
D	Tunicates

Question 108

Hepatic portal system connects

A	Liver to digestive system
B	Liver to kidney
C	Kidney to liver
D	Digestive system to liver

Question 109

One complete heart beat lasts for about;

A	0.2 sec
B	0.4 sec
C	0.16 sec
D	0.8 sec

Question 110

Transpirational pull can carry xylem sap with high speed of in tall trees:

A	600feet/h
B	1m/h
C	8m/h
D	200m/h

Question 111

Veins are the blood vessels which transport blood from body cells towards

A	Kidney
B	Brain
C	Heart
D	Liver

Question 112

The exchange and con(c) of minerals and ions in the blood and body cells is disturbed in

A	Thalassamia
B	Leukemia
C	Oedema
D	Blue babies

Question 113

Ascent of sap involves.

A	Root pressure
B	Imbibition
C	Cohesion tension theory
D	All of above

Question 114

The cells or water secreting glands in some grasses are:

A	Cuticle
B	Hydathodes
C	Mesophyll
D	Stomata

Question 115

The heart is enclosed in a double membranous sac called:

A	Myocardium
B	Epicardium
C	Endocardium
D	Pericardium

Question 116

According to pressure flow theory, which of the following serves as skin?

A	Leaves
B	Roots
C	None
D	Stem

Question 117

Rate of blood flow Is 400-500 mm/second,

A	Arterioles
B	Vena cava
C	Aorta
D	Capillaries

Question 118

The leucocytes that are about twice the size of red cells, possess a bllobed nucleus and are 2% of white cells on average are

A	Basophils
B	Eosinophils
C	Lymphocytes
D	Monocytes

Question 119

Artherosclerosis is a major condition leading to

A	Haemorrhage
B	Heart attack
C	Hypertension
D	Stroke

Question 120

Artherosclerosis is mainly because of deposition of which of the following?

A	High level of cholesterol
B	High level of phospholipids
C	Low level of cholesterol
D	Low level of phospholipids

Question 121

Osmotic (solute) potential is always:

A	None
B	Negative
C	Neutral
D	Positive

Question 122

In human males one cubic millimeter of blood contains about how much red blood cells

A	4 to 4.5 million
B	5.5 million
C	4 million
D	5 million

Question 123

Heart of man is:

A	Diagenic
B	Myogenic
C	Neurogenic
D	Cardiogenic

Question 124

The lenticels are

A	Special pores present in the leaves
B	Special pores present in the stem
C	Special cells present in the stem
D	Special cells present in leaves

Question 125

The mineral element In chlorophyll and haemoglobin are respectively

A	Ca and Mg
B	Mg and Fe
C	Ca and Fe
D	Co and Fe

Question 126

One complete heartbeat lasts for about:

A	0.9 second
B	0.3 second
C	0.5 second
D	0.8 second

Question 127

Which type of tissue form internal linning of blood vessels

A	Connective
B	Muscle
C	Epithelial
D	Nervous

Question 128

Liver receives blood from digestive system through

A	Portal vein
B	Iliac vein
C	Hepatic vein
D	Hepatic portal vein

Question 129

Cytoplasmic strands that extend through pores in adjacent cell wall are:

A	Plasmostrand
B	Plasmofilament
C	Plasmodesmata
D	Plasmofibre

Question 130

The growth rate of plant is reduced due to

A	Mild water stress
B	High Temperature
C	Low or mild light
D	Low humidity of air

Question 131

After a fatty meal how much fat globules may make up the lymph:

A	0.50%
B	1%
C	10%
D	50%

Question 132

At capillaries the materials are exchanged t the blood and body tissues by which of the followings.

A	Active transport
B	Through intercellular spaces of endothelial lining of wall of capillary
C	All these
D	Endocytosis and exocytosis

Question 133

Rate of transpiration will be higher in

A	Halophytes
B	Hydrophytes
C	Xerophytes
D	Mesophytes

Question 134

Pressure potential in cellular system is due to

A	Both of these
B	Wall pressure
C	Diffusion pressure
D	None of these

Question 135

The tricuspid and bicuspid valves close and the sound made is

A	dub
B	lubb
C	hub
D	jub

Question 136

The ions involved in opening and closing, of stomata are

A	Magnesium
B	Calcium
C	Sodium
D	Potassium

Question 137

During photosynthesis the Rubisco acts as

A	Hydrogenase
B	Carboxylase
C	Oxygenase
D	Dehydrogenises

Question 138

Which disorder is related to abnormal hemoglobin?

A	Leucaemia
B	Qedema
C	Myopia
D	Thalassamia

Question 139

An antibody molecule consists of how many polypeptide chains

A	Two
B	Four
C	One
D	Many

Question 140

According to pressure flow theory, which of the following serves as sink?

A	Both a & b
B	Roots
C	Stem
D	Leaves

Question 141

The blood vessels with walls that are only one cell thick are

A	Venules
B	Veins
C	Capillaries
D	Arteries

Question 142

Movement of water and minerals along______is negligible:

A	Both a+b
B	Vacuolar pathway
C	Apoplast pathway
D	Symplast pathway

Question 143

At 40 - 45 C, the stomata are:

A	None
B	Closed
C	Open
D	Flaccid

Question 144

The valves present in the veins are;

A	Aortic
B	Bicuspid
C	Semi-lunar
D	Tricuspid

Question 145

One of the following is not cells but are fragments of large cells called megakaryocytes:

A	Eosinophils
B	Red blood cells
C	Monocytes
D	Platelets

Question 146

7000 - 8000 per mm³ of bloo(d) Which components of blood cells are?

A	Erythrocytes
B	Both b and c
C	Leucoeytes
D	White blood cells

Question 147

Active transport is a selective process and is_______ dependent

A	Ions
B	Water
C	Respiration
D	All of foregoing

Question 148

The type of white blood cells which destroys phagocytosis is:

A	Neutrophil
B	Eosinophil
C	Monocyte
D	Basophil

Question 149

Casparian strips are present in cells of root:

A	Cortex
B	Epidermis
C	Endodermis
D	Phloem

Question 150

The conduction of impulses from SA node moves to

A	AV node
B	Cardiac muscles
C	Purkinjii fibers
D	Bundle of His

Question 151

How many layers are present In wall of the heart of man:

A	None
B	2
C	4
D	3

Question 152

The xylem sap of tall plants which is responsible for development of root pressure is under_______instead of pressure.

A	Transpiration
B	None of these
C	Pulling
D	Tension

Question 153

What is an antigen?

A	It is a blood group
B	It is a Phospholipid
C	It is a toxic substance
D	It is a protein

Question 154

Antibodies are manufactured in

A	Monocytes
B	T-lymphocytes
C	None of these
D	B-lymphocytes

Question 155

The process not involved during ascent of sap in xylem:

A	Imbibition
B	Exudation
C	Cohesion tension force
D	Roots pressure

Question 156

Which of the following can be attributed to atherosclerosis:

A	Narrowing of arteries
B	All of these
C	Increases of risk of thrombus formation
D	Hardening of arteries

Question 157

The normal pH of human blood is

A	5.4
B	6.4
C	7.4
D	9.4

Question 158

A clot of blood contains:

A	Fibrinogen
B	Thrombin
C	Prothrombin
D	Fibrin

Question 159

A loose mass of oval or irregular cells with many intercellular spaces present in the bark of stem is a

A	Stomatal apparatus
B	Lenticel
C	Stomata
D	Guard cell

Question 160

The systolic blood pressure in a normal individual is

A	75-85 mm Hg
B	85/1 20 mm Hg
C	100 mm Hg
D	120 mm Hg

Question 161

In dorsiventral leaves the stomata are present

A	At the tips of leaves
B	Lower epidermis
C	Both in upper and lower epidermis
D	Upper epidermis

Question 162

A low level of carbon dioxide favours

A	Closes the stomata permanently
B	Closing of stama
C	Does not affect movement of guard cells
D	Opening of stomata

Question 163

Bleeding phenomenon is not shown by:

A	Sugar maple
B	Strawberry
C	Grape wine
D	Palms

Question 164

It is not a phagocyte cell:

A	Basophib
B	Neutrophil
C	Lymphocyte
D	Monocyte

Question 165

Antibodies are secreted by

A	B-lymphocytes
B	T-lymphocytes
C	Antigens
D	Platelets

Question 166

How many type of Transpiration you have studied?

A	5
B	1
C	2
D	3

Question 167

Match heart attack with one of the followings:

A	Oedema
B	Stroke
C	Myocardial infarction
D	Hypertension

Question 168

The cells which supply ATP and proteins to sieve tubes are:

A	Vessels
B	Tracheids
C	Epidermal
D	Companion

Question 169

Granulocytes are formed in the

A	Red bone marrow
B	Tonsils
C	Thymus
D	Adenoids

Question 170

The pressure flow theory was first proposed in 1930 by

A	Flemming
B	Dixon
C	Ernst Haeckel
D	Ernst Munch

Question 171

The colour of lymph is:

A	White
B	Colourless
C	Pale yellow
D	Milky

Question 172

In earthworm the dorsal blood vessel acts as_____ vessel in the first 13 segments

A	Both collecting and distributing
B	Distributing
C	Pumping
D	Collecting

Question 173

Which of the following has a double circuit heart?

A	Mammals
B	Reptiles
C	Birds
D	All of above

Question 174

In an undamaged blood vessel, conversion of prothrombin to thrombin is prevented by

A	Heparin
B	Fibrinogen
C	Ca
D	Factor viii

Question 175

The lymph most closely resembles with

A	Interstitial fluid
B	Both A and B
C	Plasma
D	Blood

Question 176

In maize leaf the stomata are present in

A	At the tips of leaves
B	Lower epidermis
C	Both in upper and lower epidermis
D	Upper epidermis

Question 177

Cardiac muscle can be distinguished from other muscle fibres because cardiac muscle.

A	Lacks regular arrangement of sarcomeres
B	Voluntary in action
C	Has intercalated discs
D	Contain only actin

Question 178

Number of RBC in an adult man per mm3 of blood is:

A	10000
B	5000000
C	4500000
D	80000

Question 179

How many hypothesis explain the opening & closing of stomata?

A	4
B	7
C	3
D	2

Question 180

Attraction between water-water molecules in xylem tissues is called:

A	Cohesion
B	Tension
C	Imbibition
D	Adhesion

Question 181

Single circuit heart is present in

A	Fishes
B	Amphibians
C	Reptiles
D	Mammals

Question 182

When blood moves through the branching arteries and arterioles, the rate of blood flow tends to

A	Stop
B	Fall
C	Remains Unchanged
D	Increase

Question 183

A vessel carrying deoxygenated blood from heart and sends to lungs Is

A	Pulmonary artry
B	Sinus venosis
C	Pumonary vein
D	Coronary artry

Question 184

The condition cause narrowing and hardening of arteries is called:

A	Atherosclerosis
B	Necrosis
C	Apoptosis
D	Sclerosis

Question 185

The path way which is of greatest importance for both water and solutes:

A	Symplast pathway
B	Vacuolar pathway
C	Both a+b
D	Apoplast pathway

Question 186

The blood cells and cell like bodies are about how much by volume of the blood in normal human:

A	55%
B	100%
C	45%
D	78%

Question 187

Which one of the following can act as a source in 2nd growing season?

A	Developing fruits
B	Immature leaf
C	Roots of sugar beet
D	Mature leaf

Question 188

Lymph most closely resemble with:

A	Interstitial fluid
B	Urine
C	Plasma
D	Blood

Question 189

Loss of liquid water in strawberry plant is called:

A	Transpiration
B	Both a & b
C	Guttation
D	Exudation

Question 190

Which of the following can move across a semipermeable membrane?

A	Hypotonic
B	Hypertonic
C	Solvent molecules
D	Solute molecules

Question 191

The blood groups in man were discovered by:

A	Francis Nelson
B	Landsteiner
C	Mendel
D	S.Miller

Question 192

At high altitude RBCs of human blood will

A	Increase in size
B	Decrease in no.
C	Increase in no.
D	Decrease in size

Question 193

Heart of crocodile is

A	Four chambered
B	Three chambered
C	Two chambered
D	Single chambered

Question 194

The destruction of antigens is caused by

A	B-cells
B	Antibodies
C	T-cells
D	Antiserum

Question 195

If osmotic potential of cell A and B at equilibrium is -1700 kPa and Ws of cell B is -1400 KPa then what will be the Ws of cell A:

A	-1200 KPa
B	-2000 KPa
C	-800 KPa
D	-600 KPa

Question 196

In higher vertebrates SA node helps in

A	Conduction of blood
B	Opening of bicuspid valves
C	Initiation of heart beat
D	Opening of tricuspid valves

Question 197

Each sieve tube member is associated by one or more:

A	All of foregoing
B	Mesophyll cells
C	Companion cells
D	Parenchyma

Question 198

Heparin is

A	Blood diluter
B	Anticoagulent
C	Antiseptic
D	Anti allergic

Question 199

In embryonic life red blood cells are formed in the

A	Sternum
B	Liver and spleen
C	Bone marrow
D	Liver

Question 200

Stroke is related to:

A	Shock
B	Brain
C	Heart
D	All of above

Question 201

Which one of the following blood roups belongs to the category of universal recipient:

A	AB
B	O
C	A
D	B

Question 202

One cubic millimeter of blood contains how many white blood cells:

A	7000
B	1 million
C	7000 to 8000
D	5 million

Question 203

The difference between systolic and diastolic blood pressure diminishes and finally disappears in?

A	Capillaries and veins
B	Veins
C	Arterioles
D	Capillaries

Question 204

Which of the following has a double circuit heart?

A	Reptiles
B	Birds
C	All of above
D	Mammals

Question 205

Closed circulatory system is present in:

A	Echimoderms
B	Vestebrates
C	Mollusks
D	Both b & c

Question 206

In one of the following the blood pressure is low

A	Arterioles
B	Arteries
C	Capillaries
D	veins

Question 207

Electrical impulses in heart asises from:

A	Cardiac node
B	SA node
C	Inter node
D	AV node

Question 208

The process that most likely/directly enables a root hair cell to absorb minerals by active transport and enables a muscle cellato contract is :

A	Excretion
B	Respiration
C	Assimilation
D	Circulation

Question 209

Guftation in plants can be explained on the basis of

A	Root pressure
B	None of these
C	Transpiration pull
D	Water pressure

Question 210

In cockroach the heart is

A	Four chambered
B	Three chambered
C	Five chambered
D	Thirteen chambered

Question 211

Which of the following processes cause substances to- move across membranes without the expenditure of-cellular energy?

A	Endocytosis
B	None of the above
C	Active transport
D	Diffusion

Question 212

A condition of high blood pressure is known as:

A	Haemorrage
B	Hypontension
C	Arteriosclerosis
D	Hypertension

Question 213

Shrinkage of protoplast due to exosmosis of water is:

A	Plasmolysis
B	Deplasmolysis
C	Adhesion
D	Imbibition

Question 214

About how Much blood is in the circulatory system of a normal person:

A	2 liter
B	1 liter
C	5 liter
D	10 liter

Question 215

The volume of dry seed may increase up to 200 times by:

A	Active transport
B	Imbibition
C	Osmosis
D	Diffusion

Question 216

When a flaccid cell is placed in distilled H₂O .then cell will gain its original form. This process is called as:

A	Plasmolysis
B	High turgour pressure
C	Low turgour pressure
D	Deplasmolysis

Question 217

In plants cells how many factors determine water potential.

A	3
B	4
C	None
D	2

Question 218

The loss of water through Hydathodes in leaves is called:

A	Guttation
B	Transpiration
C	Imbibition
D	Bleeding

Question 219

Which of the following is / are involved in pulmonary circulation

A	Ventricles
B	Pulmonary veins
C	Pulmonary arch
D	All of these

Question 220

The dew drops on the tip of the Grass Leaves involves the phenomenon:

A	Transpiration Pull
B	Imbibition
C	Guttation
D	Bleeding

Question 221

A foreign substance, often a protein which stimulate the formation of an antibody Is

A	All of these
B	B-lymphocytes
C	Antigen
D	T-lymphocytes

Question 222

A clot of blood contains:

A	Fibrinogen
B	Thrombin
C	Fibrin
D	Prothrombin

Question 223

Discharge of blood from blood vessel is called as:

A	Heart attack
B	Thromobosis
C	Stroke
D	Haemorrage

Question 224

The pressure exerted by protoplast against the cell wall is called:

A	Osmotic pressure
B	Hydrostatic prossure
C	Transpiration
D	Turgidity

Question 225

Blood provides immunity with the help of which one of the followings:

A	Lymphocytes
B	Eosinophils
C	Neutrophils
D	Monocytes

Question 226

In the embryonic life the red blood cells are formed in:

A	In bone marrow of sternum and ribs
B	Bone marrow of vertebrae
C	Red bone marrow
D	Liver and spleen

Question 227

B - lymphocytes are responsible for the production of:

A	Antigen
B	Antibody
C	Both a & b
D	Immunogen

Question 228

Hydathodes are associated with

A	None of these
B	Transpiration
C	Conduction
D	Guttation

Question 229

Blood provides immunity by:

A	Leukocytes
B	Platelets
C	RBC
D	Lymphocytes

Question 230

Ascent of sap involves:

A	Imbibitions
B	Root pressure
C	Cohesion tension theory
D	All of above

Question 231

Temperature causes colosure of stomata

A	30 - 35 C
B	25 - 35 C
C	30 - 40 C
D	40 - 45 C

Question 232

Maximum water potential is of:

A	Impure water
B	Soil solution
C	Pure water
D	Cell sap

Question 233

One of the following is considered to act as multisensorys hydraulic valves and respond to stimuli:

A	Hydathodes
B	Guard cells
C	Stomata
D	Lenticels

Question 234

The total transpiration takes place through cuticle is:

A	1-7%
B	5-8%
C	2-5%
D	5-7%

Question 235

Surose present in honey dew is_______:

A	10%
B	20%
C	90%
D	1%

Question 236

Which one is not the layer of wall of heart?

A	Myocardium
B	Epicardium
C	Pericardium
D	Endocardium

Question 237

At night when the stomata are almost closed, transpiration usually occurs through

A	Hydathodes
B	Guard
C	Cuticle
D	Lenticels

Question 238

The formation of thrombus is called

A	Thrombosis
B	Thromboembolism
C	Hypertension
D	Myocardial infarction

Question 239

How many RBCs are formed and destroyed every second:

A	2-8 million
B	2-6 million
C	2-10 million
D	1-2 million

Question 240

The roots of Prosopis tress are _________ meters deep.

A	30
B	50
C	20
D	10

Question 241

The valves preent in the walls of veins prevent the back flow of blood are

A	Bicuspid
B	Semilunar
C	Tricuspid
D	Aortic

Question 242

Blood coagulation is prevented by:

A	Heparin
B	Plastin
C	Prothrombin
D	Thrombin

Question 243

The femoral and sciatic arteries arise from;

A	Gastric arteries
B	Hepatic arteries
C	Lliac arteries
D	Mesenteric arties

Question 244

Which of the following can be attributed to arthroscierosis?

A	Narrowing of arteries
B	Increase of risk of thrombus formation
C	All these
D	Hardening of arteries

Question 245

Which of the following solution will cause plasniolysis in a cell?

A	Hypotonic
B	Isotonic
C	Hypertonic
D	None of these

Question 246

Which of the following is NOT true of guard cells?

A	They are kidney shaped
B	They are present in the epidermis of leaf
C	None
D	They contain chloroplasts

Question 247

Cells which are directly involved in transport of sugars and other organic substances:

A	Fibres
B	Companion cells
C	Latex containing cells
D	Sieve elements

Question 248

Haeme portion of Haemoglobin contains an atom of

A	Magnesium
B	Phsphorous
C	Calcium
D	Iron

Question 249

The ions involved in the openiiig and closing of stomata are:

A	Calcium
B	Magnesium
C	Sodium
D	Potassium

Question 250

At ______the protoplast has just ceased to exert any pressure against cell wall:

A	Incipient plasmolysis
B	Deplasmolysis
C	None of these
D	Plasmolysis

Question 251

The blood minus all cell and fibrinogen is called:

A	Plasma
B	Platelet
C	Serum
D	Capillary

Question 252

Type of blood cells which stay from 10-20 hours in the blood then enter tissues and become macrophages are called as:

A	Neutrophils
B	Basophils
C	Monocytes
D	Lymphocytes

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Biology – 1st YearChapter Name : TransportChapter No. 14 Question Type : Multiple Choice Questions [MCQ’s]Note : All MCQ’s selected in this test are from OLD F.Sc. board , UHS and PMC(Pakistan Medical Commission) Islamabad Papers.

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