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F.Sc Biology Chapter No.13 Gaseous Exchange 1ST YEAR MCQ

Biology MCQs 1st Year Chapter No. 13 Gaseous Exchange. FSc, First Year Multiple Choice Questions, Medical College ( MDCAT ) , ECAT & University Admission Entry Test Exams Online Preparation, Chapter Wise Question Answers, Old Board Papers reference with Each Question, All Queries accommodated within 24 Hours. Click here to Contact us for any Query/Question regarding Exams.

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Biology – 1st Year
Chapter Name : Gaseous Exchange
Chapter No. 13 
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. 13
Chapter Name : Gaseous Exchange 
Total MCQ from Text Book :  159
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 : 159
Total Time :  159 minutes




محترم اساتذہ کرام و  پیارے طلبا و طالبات
ہم نے یہ ویب سائٹ آپ کے فائدے اور امتحانی تیاری کو مدنظر رکھ کر بنائی ہے۔ اگر آپ کو اس سے کوئی فائدہ ہوتا ہے اور آپ کو یہ ایم سی کیوز امتحان کی تیاری کے لئے سود مند ہیں ۔ تو آپ اپنے  کم سے کم دس دوستوں کو اس کا لنک ضرور  شئیر کریں۔تاکہ اس سے آپ کے  بہت سارے دوسرے دوستوں کا فائدہ ہوسکے۔



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GRADE 11 - BIOLOGY CHAPTER NO.13 Gaseous Exchange

GRADE 11 - BIOLOGY CHAPTER NO.13 Gaseous Exchange

1 / 159

Floor of chest cavity in human is:

2 / 159

The process of inspiration takes place as;

3 / 159

Carbonic anhydrase is found in:

4 / 159

How much air lungs can hold when they are fully inflated:

5 / 159

A liter of water contains ml of oxygen:

6 / 159

The energy is extracted and conserved from food molecules in biologically useful way such as:

7 / 159

Which of the following has no blood but respires?

8 / 159

How much carbon dioxide is transported as bicarbonate ion in the plasma

9 / 159

The photorespiration started when the amount of oxygen became:

10 / 159

For gaseous exchange through membranes,______ is better respiratory
medium then water.

11 / 159

All of the following contain cartilage except:

12 / 159

The form of energy used in respiration is

13 / 159

In pulmonary respiration gaseous exchange take. lace through.

14 / 159

Respiratory organs in hydra are:

15 / 159

In a planarian the gaseous exchange is carried out:

16 / 159

Parabronchit are present in:

17 / 159

Due to photorespiration, the amount of CO2 fixed into carbohydrate is reduced by:

18 / 159

During photorespiration, Glycine is converted into serine in the

19 / 159

The respiratory system is most efficient in

20 / 159

Which of the following characteristic is not shown by the diving mammals
during act of diving?

21 / 159

The volume of air taken inside the lungs and expelled during exercise is

22 / 159

How many molecules of oxygen can bind with a molecule of myoglobin:

23 / 159

Respiratory pigment present in musclesis called:

24 / 159

% age of CO2, carried as carboxyhaemoglobin is

25 / 159

The main sites of exchange of gases in plants are:

26 / 159

The glycine produced during photorespiration enters.

27 / 159

Which of the following prevents collapsing of trachea?

28 / 159

Extraction & conservation of energy from food molecules during cellular respiration is in the form of:

29 / 159

During rest the breathing occurs rhythmically at the frequency of times per minute in human

30 / 159

In cockroach how many spiracles are present?

31 / 159

Exchange of gases during organismic respiration is carried out only by:

32 / 159

Emphysema is breakdown of:

33 / 159

Breathing is also known as:

34 / 159

The amount of Carbondioxide present in air is about:

35 / 159

Cancer is caused by metastasis. Metastasis is a process in which

36 / 159

Lungs of birds have thin walled ducts called

37 / 159

Exchange of gases in earthworm is due to:

38 / 159

Cancer expands systemically by

39 / 159

Oxygen contents of air per litter is:

40 / 159

Movement of CO2 and O2 across the alveoli and capillaries takes place by

41 / 159

Water is _______ times viscous than air:

42 / 159

Cellular respiration is the process in which cell utilizes Oxygen to produce:

43 / 159

Due to photorespiration, the amount of CO2 fixed into carbohydrates is

44 / 159

Vocal cords occur in:

45 / 159

Which of the following statement about haemocyanjn is wrong?

46 / 159

Cancer is not basically a malignant tumor. It is tumor which can;

47 / 159

Number of air sacs in birds is:

48 / 159

Respiratory gases are exchanged between:

49 / 159

Respiratory organs in hydra are:

50 / 159

Respiratory pigment present in muscles is called

51 / 159

How much the air spaces comprise of the total volume of the leaf:

52 / 159

Pleura is double layered thin membrane that covers

53 / 159

The covering of lungs is called:

54 / 159

In which form the CO2 is mostly carried in blood?

55 / 159

Which of the following have higher content of Oxygen?

56 / 159

Sudden deep inspiration may be due to

57 / 159

How many times water is douser than air?

58 / 159

Which structure is involved in the gaseous exchange of plants?

59 / 159

How much CO2 per 100 ml of blood is present in atrial blood?

60 / 159

Water is more viscous than air:

61 / 159

Oxygen is transported in blood mainly by:

62 / 159

One of the following is a contiguous disease.

63 / 159

Cancer is also known as:

64 / 159

Important factors which affect the capacity combine with oxygen is

65 / 159

The narrowest and most numerous tubes of lungs are termed as:

66 / 159

Structure, which closes the passage to lungs when food is coming, is
called:

67 / 159

At high attitudes RBCs of human blood will:

68 / 159

How much air lungs can hold when they are fully inflated:

69 / 159

Oxygen is transported in blood mainly by:

70 / 159

The respiratory problem most among smokers is

71 / 159

In which of the following the reaction of photorespiration does not take place;

72 / 159

The exchange of gases (CO2 and O2) between the organism and its environment is called:

73 / 159

Operculum is present in:

74 / 159

Amount of O2 normally carried by 100 ml of pure blood is:

75 / 159

Exchange of gases is carried out only by the process

76 / 159

Glycine is converted into serine in;

77 / 159

Lungs are covered with double membrane sacs called

78 / 159

In birds during respiration the flow of air is:

79 / 159

Lungs are spongy due of the presence of million of

80 / 159

closes the respiratory passage during ingestion of food

81 / 159

Tuberculosis is a disease of lungs caused by

82 / 159

Photorespiration takes place when;

83 / 159

Sound box or voice box is another name of:

84 / 159

Amount of O2 normally carried by 100 ml of pure blood is:

85 / 159

The exchange of gases in a mammal takes place at:

86 / 159

Openings which lead in the nasal cavitiestare:

87 / 159

The floor of the chest is called:

88 / 159

Membrane, which covers the lungs and reduces the friction, is called:

89 / 159

Break down of alveoli of lungs is called

90 / 159

Respiratory pigment present in muscles is:

91 / 159

If more oxygen is present, the rubisco starts:

92 / 159

In insects the oxygen and carbon dioxide are carried to and away from cells by:

93 / 159

When oxygen tension is 115 mm of mercury then haemoglobin saturation is

94 / 159

Organismic respiration is also known as:

95 / 159

Blood is not involved in transport of gas in:

96 / 159

In human blood circulatory system the percentage of carbon dioxide
carried as carboxyhaemoglobin is:

97 / 159

There are ______ stomata per square cm of leaf surface in tobacoo plants:

98 / 159

When haemoglobin is 98% saturated, the oxygen content per 100 ml of blood is

99 / 159

Up to 40% of the total volume Of the leaf is:

100 / 159

Which of the following is a condition of emphysema?

101 / 159

Oxyhaemoglobin dissociates in o oxygen and deoxyhaemoglobin at

102 / 159

Which statement about Haemoglobin is wrong?

103 / 159

In earthworm exchange otgases mainly occurs through:

104 / 159

Which of following affect oxygen absorption?

105 / 159

Carbonic anhydrase is an enzyme in REICs that catalyse a reaction between carbon doioxide and

106 / 159

The amount of oxygen in exhaled air is about

107 / 159

In fish, oxygenation of blood takes place in

108 / 159

Tiny thin-walled ducts called parabronchi are present in the lungs of:

109 / 159

The most efficient and highly modified for gaseous exchange in equatic
animals are:

110 / 159

A child breathes nearly times a'minutes:

111 / 159

How many times water is more viscous than air?

112 / 159

CommonIeature of human and insect trachea is:

113 / 159

Single circuit heart is present in:

114 / 159

Haemoglobin, present in muscle fiber is known as:

115 / 159

Which is the end product of glycolysis?

116 / 159

During transport of CO2 blood does not be come acidic due to:

117 / 159

In cockroach how many spiracles are present?

118 / 159

Oxygen contents of fresh air are:

119 / 159

Myoglobin occurs in

120 / 159

Removal of consumed air out of lungs is:

121 / 159

During inspiration, diaphragm:

122 / 159

The respiration rate is lowest at:

123 / 159

Arterial blood contains __________ of CO2 per 100 ml of blood

124 / 159

Parabronchi are present in

125 / 159

The pulmonary disorder associated with breakdown of alveoli is referred to as

126 / 159

Vocal cords are stretched across

127 / 159

Parabranchi are present only in the lungs of

128 / 159

Histamines are released into circulatory system during the disease.

129 / 159

At high altitudes RBCs of human blood will:

130 / 159

Which of the following is NOT a beneficial property of respiratory surface?

131 / 159

Carbon monoxide has greater affinity for hemoglobin as compared to oxygen:

132 / 159

In Cockroach the partly digested food is stored in

133 / 159

Exchange of gases in earthworm is due to:

134 / 159

One of following respiratory disorder causes release of inflammatory
chemicals such as histamine into the circulatory system that cause severe contraction of the bronchiole

135 / 159

More than ten compounds of tar of tobacco smoke are included in causing

136 / 159

Which type of respiratory organs are present in spiders and scorpions?

137 / 159

MyCobacterium tuberclosis causes:

138 / 159

The functional respiratory organ of a fully formed tadpole is:

139 / 159

Lungs are covered with double with layered thin membranous sac called

140 / 159

The respiration problem most common among smokers is

141 / 159

A respiratory problem commonly found among premature infants with a gestation age of less than seven months.

142 / 159

The Oxygen contents of fresh air is about

143 / 159

The covering of lungs is called:

144 / 159

During photo-respiration glycolate diffuses into the membrane bounded organelle named as:

145 / 159

If the CO2 concentration in the blood increases, the breathing shall:

146 / 159

Percentage of Carbon dioxide carried in the form of bicarbonate in plasma is

147 / 159

The exchange of gases in a mammal takes place at:

148 / 159

Voice box is also known is:

149 / 159

Myoglobin consists of polypeptide chains.

150 / 159

How many pairs-of spiracles are present in thorax?

151 / 159

The air spaces may comprise upto_____ of total volume of leaf surface:

152 / 159

Which of the following plays on important
role in swallowing and breathing?

153 / 159

In man, which of the following structure is analogous to the spiracle of
cockroach?

154 / 159

Rate of carbon dioxide fixation is lowered due to:

155 / 159

If more oxygen is present, the rubisco starts:

156 / 159

Respiratory rate in human, at rest is in range of ______'times per minute.

157 / 159

In tobacco plant, how many stomata are present in 1 cm2 of leaf.

158 / 159

Cancer expands systemically by

159 / 159

The process in which RuBP is converted into serine is called:

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The average score is 40%

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