GENERAL SCIENCE MCQS SET 20

GENERAL SCIENCE MCQS SET 20

1. Which of the following is true for aerobic respiration in humans?
a) Glucose + water = carbon dioxide + water
b) Glucose + oxygen = Carbon dioxide + water
c) Glucose = Carbon dioxide + water
d) None of the mentioned
Answer: b
 
2. Respiration results in ___________
a) Release of oxygen
b) Anabolism
c) Release of carbon dioxide
d) Transfer of carbon dioxide
Answer: c
 
3. During hibernation frogs respire through ________
a) Gills
b) Lungs
c) Tympanum
d) Integument
Answer: d
 
4. In which of the following animal respiration occur without any respiration organs?
a) Frog
b) Fish
c) Cockroach
d) Earthworm
Answer: d
 
5. Fishes respire through skin.
a) True
b) False
Answer: b

6. The product of glycolysis is ________
a) Pyruvate
b) Lactic acid
c) NADH
d) Acetyl coA
Answer: a

7. Where in the cell most of the aerobic respiration takes place?
a) Mitochondria
b) Nucleus
c) Ribosome
d) Cytoplasm
Answer: a
 
8. Which of the following occurs both in photosynthesis and respiration?
a) Krebs cycle
b) Glycolysis
c) Calvin cycle
d) Chemiosmosis
Answer: a
 
9. Which of the following is true for anaerobic respiration?
a) Glucose + lactic acid = carbon dioxide + water
b) Glucose= Lactic acid + carbon dioxide
c) Glucose gives lactic acid
d) None of the mentioned
Answer: c
 
10. Catabolic processes:
a) Make complex molecules
b) Break complex molecules
c) Occur in autotrophs
d) Occur in heterotrophs
Answer: a