[MCQ]Biology MCQs For WBCS Exam||SET 25

 

 Biology MCQs For WBCS Exam

WBCS BIOLOGY MCQ Q1. 

Which of the following has no blood but respires?

(a) Earthworm

(b) Hydra

(c) Cockroach

(d) Fish

Ans. (b)

WBCS BIOLOGY MCQ Q2. 

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

(a) Book lungs

(b) Gill books

(c) Gills

(d) Lungs

Ans. (a)

WBCS BIOLOGY MCQ Q3. 

The functional respiratory organ of a fully formed tadpole is the

(a) Skin

(b) Lung

(c) Gill

(d) Air bladder

Ans. (c)

WBCS BIOLOGY MCQ Q4. 

In frog, cutaneous respiration takes place

(a) Only in water, when pulmonary respiration does not take place

(b) Only in water, but along with pulmonary respiration

(c) Only on land

(d) Always

Ans. (d)

WBCS BIOLOGY MCQ Q5. 

At high altitude, RBCs of human blood will

(a) Increase in number

(b) Decrease in number

(c) Decrease in size

(d) Increase in size

Ans. (a)

WBCS BIOLOGY MCQ Q6. 

Presence of large number of alveoli around alveolar ducts opening into bronchioles in mammalian lungs is

(a) Inefficient system of ventilation with little of residual air

(b) Inefficient system of ventilation with high percentage of residual air

(c) An efficient system of ventilation with no residual air

(d) An efficient system of ventilation with little residual air

Ans. (d)

WBCS BIOLOGY MCQ Q7. 

The narrowest and most numerous tubes of lungs are termed as

(a) Bronchus

(b) Alveoli

(c) Bronchioles

(d) Hilum

Ans. (c)

WBCS BIOLOGY MCQ Q8. 

The exchange of gases in a mammal takes place is

(a) trachea

(b) Bronchioles

(c) Bronchi

(d) Alveoli

Ans. (d)

WBCS BIOLOGY MCQ Q9. 

Tidal volume of air in a normal healthy man during inspiration is about

(a) 300-400 ml

(b) 500-700 ml

(c) 900-1000 ml

(d) 100-250 ml

Ans. (b)

WBCS BIOLOGY MCQ Q10. 

After complete exhalation the lungs of a healthy man contains a liter of gas, this quantity is known  as

(a) Residual volume

(b) Functional residual capacity

(c) Total lung capacity

(d) Dead space

Ans. (a)

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⚡BIOLOGY MCQs SET 24[PREV]

⚡BIOLOGY MCQs SET 26[NEXT]

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