1st Year Biology MCQs Chapter No.11 download pdf

Quantitative study of energy relationships in biological organisms is

Plastocyanin protein contains:

The study of biological energy transformation is called;

Chlorophyll absorb mainly which of the following wavelengths?

Photosynthetic is maximum during :

The carotenes are mostly red to

What % age of light energy falling on leaves is used up in photosynthesis?

Which chlorophyll is most abundant of all the chlorophylls?

During respiratory chain coenzyme Q is oxidized by

The splitting of water and relase of O2 during light reaction is:

______is the first fixed organic form of CO2:

Energy capturing process in plants is

How 3-Phosphoglycerate converted into 2 phosphoglycerate:

Carbonidioxide enters the leaves through

The assimilatory power in photosynthesis is:

When green plant performs photosynthesis at Its maximum rate:

Which of the following Is common in anaerobic and aerobic respiration?

The plant appear green because;

The election transport chain system plays role in generation of ATP by

Chemical formula of chlorophyll 'a' is:

Absorption peaks of chlorophyll are at

Xanthophylls are --- in colour.

The process of photophosphorylation was discovered by;

The primary electron acceptor in cyclic photophosphorylation is

Magnesium is an important nutrient ion in green plants as it is an essential component of :

Synthesis of sugar occurs in:

FADH2 is produced during following step of Krebs cycle:

The first action spectrum was obtained from

The colour of chlorophyll b is

Pyruvic Acid is produced as a result of

All of the following are found In eukaryotic photosynthetic plants and algae except

Synthesis of ATP in the presence of oxygen is called :

The oxidatiive phosphorylation is coupled with respiratory ETC with the help of :

Formula of latic acid is :

How many ATP molecules aro prbducod In the oxidation of ono molecule of NADPH +H+ In the E.T.C of respiration.

Before pyruvate enters the citric acid cycle, It is decarboxylated, oxidized, and combined with coenzyme A, forming acetyl C9A, carbon dioxide, and one molecule of

In chlorophyll b, which one of the following replaces the methyl group bonded to porphyrin ?

Conversion of one Pyruvic acid into one acetly CoA gives off one molecule of.

Which one is not the phase of Calvin cycle?

In the first step of the citric acid cycle, acetyl CoA reacts with oxaloacetate to form

Which of the following chlorophyll is found along with chlorophyll is four in all enbryophytes and green algae?

The NADPH molecule will provide reducing power for the synthesis of sugar in the :

Tick the false relationship :

The primary acceptor during CO2 fixation in C plants is :

Splitting otsiugar is literally relates to

Calvin cycle occurs in

Chlorosis is due to the deficiency of

Which one of the following is not 4 carbon compund :

The breaking of terminal phosphate of ATP releases energy of about :

Which shows correct series of reactions in Kreb's cycle

Calvin cycle occurs in:

Photo system ll has the from of "chlorophyll " a which absorb best the light of :

Which statement about oxidative phosphorylation is not true?

Chlorophyll and other photosynthetic pigments are found embedded in

End product of anaerobic respiration in yeast :

During photosynthesis the oxycen in glucose comes from:

Molecular formula for chlorophyll 'b' is :

Photosystem II occurs in

Enzymes involved in cellular respiration are found in :

The source of oxygen / liberated during photosynthesis is:

In prokaryotes chlorophyll is present in the

Stomata covers only________ % of the leaf surface

Photosynthetic _______lack chloroplasts

Property which not belongs to photosynthetic bacteria

The maximum evolution of oxygen is by:

The final products of anaerobic respiration in yeast

The rate of photosynthesis is minimum at temperature of :-

Isolated stroma of chloroplsts that were kept in dark, when applied with NADPH2, it will

The opening and closing of stomata Is regulated by

The first action spectrum was obtained by :

Which statement about the chemiosmotic mechanism is not true?

Substance required for growth and repair of body

Energy releasing process is

The breaking of the terminal phosphate of ATP releases how many K.Cal of energy

A metabolic pathway which. Is primitive regarding evolutionary point of view:

Important source of atmospheric oxygen released during photosynthesis is :

Photosynthetic pigments in plants are organized into clusters called :

Magnesium Is an Important nutrient Ion in green plants as It is an essential component of :

Acetic acid on entering the mitochandrian unites with co-enzyme -A to form :

The number of chloroplast in each mesophyll cell is about :

Chlorophyll a exists in several fonts that differ slightly in their absorption peaks in which of following wavelength.

In which of the following conversion GTP is produced.

Most of the photosynthetic enzymes are present in;

During respiratory chain coenzyme Q is oxidized by:

Photosynthesis is a

During the dark reactions of photosynthesis the main process which occurs is :

Complete oxidation of pyruvate occurs during:

Which of the following photosynthetic pigment Initiates light reaction?'

Carotenolds show maximum absorption in_____ region/range

Each mesophyll cell of leaf has chlorophylls ?

Quantitative study of energy relationship in biological system is called

During the dark reactions of photosynthesis, the main process which occurs is :

The process that uses membranes to couple redox reaction to yield ATP is called

Oxidative phosphorylation is the synthesis of______ in the presence of oxygen

Through which of the following substances the photosystem passes an electron to NADP during light reaction:.

In the higher plants most established role of carotenoids is to;

The time or point when there is no net gas exchange between the leaves and the atmosphere is.

The cell rich in Chloroplasts:

The citric acid cycle.

Carbon dioxide enters the leaves through

The water splitting step of photosynthesis that relases oxygen is called :

Which statement about ATP Is not true?

Iron containing protein is :

Photosynthetic prokaryotqs laks

How many ATPs are used during light independent reactions to synthesize one molecules of glucose.

Quantitative study of energy relationships in biological system is called :

The process by which pH gradient across membrane drivers the formation of ATP is called :

Chemical link between catabolism and anabolism is

In respiratiory chain , NADH is oxidized by

End product of light reactions are

Conversion of one Pyruvic acid molecule into one molecule of acetyl CoA gives off one molecule of.

Algae used by Calvin & his co-workers in their experiments on photosyrithesis is?

Haem portion of Haemoglobin contains:

The end product of glocolysis is

Chlorophyll 'a' is :

Photosysem, 11 occurs in:.

which of the follwing have high CO2 compensation point ?

Before pyruvate enters the citric acid cycle, it is decarboxylated, oxidized, and combined with coenzyme A, forming acetyl CoA, carbon dioxide, and one molecule of.

_______ transfer the hydrogen atoms to respiratory ETC

The basic structure of all chlorophylls comptises of:

The dark reaction occur in :

The amount of energy of photon is Inversely relatod to_____ of light

Magnesium of chlorophyll is replaced in haemoglobin by

Which one of the following is not concerned with oxidative phophorylation ?

Which of the followinig chlorophylls is most abundant and takes part directly In the light reaction of photosynthesis?

Haeme porton of haemoglobin is same to porphyrin ring with a difference of :

The area of Leaf Surface covered by stomata is only

How much chloroplasts are present in a mm2 of leaf surface

Which one of the follwing would not limit photosynthesis?

First stable compund in C3 cycle is :

Cytochromes contain which element

Now ribulose phosphate Is converted into ribulose bisphosphate (RuBP)

The amount of glucose converted into ATP during anaerobic respiration is

Who was the discoverer that ."Source of oxygen released during photosynthesis is water not Carbon dioxide"

Glycolysis is the breakdown of glucose up to the formatin of :

The first step of krebs cycle is union of acetyl CoA with oxaloacetate to form :

Which one of following is not concerned with non cyclic phosphorylation ?

CO2 and O2 balance in the atmosphere is due to

The most abundant protein on Earth is

In the first step of the citric acid cycle, acetyl CoA reacts with oxaloacetate to form :

The energy present within the chemical bonds of glucose is ) converted into ATP is only about ______%

Long hydrocarbon tail,of chlorophyll is also called

Glycolysis

Which statement about the chemiosmotic mechanism is not true?

Which region of visible spectrum Is absorbed and disappeared by chlorophyll pigment :

When green plant performs photosynthesis at its maximum rate.

What is wrong about Ribulose biphosphate

Which of the following is the least effective in photosynthesis

Energy conservation reaction are

The electron passing over the E.T.C in respiration is finally transferred to the

Thylakoid membranes contain:

The percentage of phothsynthesis carried out by terrestrial plants is about

Which of the following are termed accessory pigments?

The first action spectrum was obtained by German Biologist T.W Engelmann is :

An element essential for chlorophyll formation Is

The number of chloroplast in each mesophyll cell is about :

Plants appear green because of reflection of which of the following wavelength, of light.

Ferridoxin is a component of

Molecular formula for chlorophyll 'b' is :

The citric acid cycle

Source of oxygen released during photosynthesis is water not carbon dioxide, was confirmed by'using isotopic

Pyruvate is converted into acetic acid by :

The colour of Xanthophyll are at

Which statement about qxidative phosphorylation is not true?

Electron transport intermediates are

Ferredoxin is a protein that contains

When two energized electrons from forredoxin and two H+ are given to NADP then this reaction may be called as:

Accessory Photosynthesis pigments xanthophylls are

The end product of glucose breakdown during glycolysis is :

Phosphorous is present in

How much NADH2 are formed during krebs cycle:

During respiratory ETC , ATP formation occurs:

The range 380 to 750 nm is called

Which ,one of the following pigments acts as a reaction centre during photosynthesis?.

Which wavelenght of light is least absorbed by chlorophylls?

Principles of energy tranformation in living systems are called :

Glycolysis

During cyclic phosphrylation energy Molecules are Obtained in the form of

Which statement about ATP is not true?

Splitting of water during. photosynthesis is called

Chlorophyll are embedded in which membranes

Photosynthesis pigments are the substance that absorb visible light having wave length :