Biology 9 Chapter 11

Biology 9 Chapter 11 - Test 2

1. The air enters into the larynx through a small aperture which is called sound box.

a) True
b) False

2. Trachea is about 20 cm long cylindrical tube.

a) False
b) True

3. Every lung has about three hundred million alveoli.

a) False
b) True

4. A molecule of ATP on its breakdown releases energy:
a) 7300 calories
b) 7800 calories
c) 7900 calories
d) 7100 calories

5. ATP molecule contains adosine and:
a) Three phosphate groups
b) Two phosphate groups
c) Five phosphate groups
d) One phosphate group

6. Amount of energy released from one gram gulucose:
a) 35 ATP
b) 37 ATP
c) 30 ATP
d) 36 ATP

7. During hibernation frogs and tortoises breath through:
a) Gills
b) Gills & lungs
c) Skin
d) Lungs and skin

8. Insects and other land dwelling arthropods use for their gaseous exchange:
a) Skin
b) Cuticle
c) Gills
d) Tracheal tubes

9. The respiratory area in man is from:
a) 90 -100 square meters
b) 60 - 90 square meters
c) 100 -120 square meters
d) 50- 90 square meters

10. The air enters into the larynx through a small aperture, which is called:
a) Epiglottis
b) Larynx
c) Glottis
d) Pharynx

11. The length of the trachea in human beings is about:
a) 14 cm
b) 10 cm
c) 20 cm
d) 12 cm

12. The trachea on entering the chest divides into two smaller tubes, which are called:
a) Alveoli
b) Pharynx
c) Larynx
d) Bronchi

13. Every lungs have about:
a) 200 millions alveoli
b) 600 millions alveoli
c) 500 millions alveoli
d) 400 millions alveoli

14. One Hundred mole of haemoglobin containing blood can transport about:
a) 16 millions alveoli
b) 20 millions alveoli
c) 18 millions alveoli
d) 25 millions alveoli

15. A human being, whose weight is 70 kg can store fats:
a) 10 kg
b) 15 kg
c) 14 kg
d) 12 kg

16. Aerobic respiration produces energy:
a) 20 time more than anaerobic respiration
b) 10 time less than anaerobic respiration
c) 10 time more than anaerobic respiration
d) 20 time less than anaerobic respiration

17. In anaerobic respiration a glucose molecule is broken down into:

a) Six molecules of lactic acid
b) Three molecules of lactic acid
c) Two molecules of lactic acid
d) Four molecules of lactic acid

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