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Multiple Choice Questions on Photosynthesis


1. Photosynthesis, a process of manufacture of organic compound is
Photosynthesis

a) Catabolic process
b) Anabolic process
c) Both (a) and (b)
d) None of these

2. Land plants utilize for photosynthesis
a) 1% of water absorbed
b) 10% of water absorbed
c) 0.1% of water absorbed
d)100% of water absorbed


3. Who proved that oxygen evolved in photosynthesis comes from water?
a) Mayer
b) Melvin Calvin
c) Hatch
d) Ruben and  Kamen

4. The first product of photosynthesis is sugar and it is converted
a) Into starch in all plants
b) Into proteins
c) Rarely into anything else
d) Glycogen

5. The site of light reactions of photosynthesis is
Light Reaction -Grana
a) grana
b) stroma
c) thaylakoids
d) Both (a) and (b)

6. The dark reaction in photosynthesis is called so because it
a) Cannot occur during day time
b) it is light dependent
c) it is light independent
d) occurs rapidly at night

7. Which is the most effective wavelength of light for photosynthesis?
Wavelength of light
a) Green
b) Violet
c) Red
d) Yellow


8. Q 10 is
a) The respiratory coefficient
b) A temperature coefficient
c) A scale of quality
d) A constant in quantum equation

9. The bacterial photosynthesis differs from the green plant photosynthesis in
a) Photolysis of water
b) Evolution of oxygen
c) Obtaining energy from sunlight
d) The obtaining energy from chemical compounds

10. During photochemical reaction of photosynthesis
a) Liberation of Oxygen
b) Liberation of ATP and NADPH
c) Assimilation of CO2
d) Liberation of Oxygen, formation of ATP and NADPH2 takes place

Answers
1. b) Anabolic process
2. a) 1% of water absorbed
3. d) Ruben and Kamen
4. a) Into starch in all plants
5. a) grana
6. c) it is light independent
7. c) Red
8. b) A temperature coefficient
9. d) The obtaining energy from chemical compounds
10. d) Liberation of Oxygen, formation of ATP and NADPH2 takes place

Learn more: MCQ on Photosynthesis questions: Set 1, Set 2

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