Photosynthesis MCQs
1. Photosynthesis occurs in
- Chloroplast
- Golgi body
- Endoplasmic reticulum
- Nucleus
2. The optimum temperature for photosynthesis is
- 25-35℃
- 10-15℃
- 35-40℃
- 20-25℃
3. Photorespiration occurs in
- Four cell organelles
- Two cell organelles
- One cell organelle
- Three cell organelle
4. Reduction of NADP occurs in
- Oxidative photophosphorylation
- Cyclic photophosphorylation
- Non cyclic photophosphorylation
- None
5. Kranz anatomy is found in the leaves of
- Wheat
- Mustard
- Potato
- Sugarcane
6. Peroxisomes are involved in which type of reactions
- Calvin cycle
- Glyoxylate cycle
- Glycolytic cycle
- Bacterial photosynthesis
7. Photorespiration involves oxidation of
- PGA
- RuBP
- Chlorophyll a
- Both a and b
8. C3 and C4 plants differ with respect to
- Number of ATP molecules consumed
- First product
- Substrate which accepts carbon dioxide
- All
9. In Calvin cycle, 1 molecule of glucose is formed from
- 6CO2 + 30ATP + 12NADPH
- 6CO2 + 12ATP
- 6CO2 + 18ATP + 12NADPH
- 6CO2 + 18ATP + 30NADPH
10. Where does light reaction take place?
- Grana
- Stroma
- Cytoplasm
- Endoplasmic reticulum
11. Electrons from the excited chlorophyll molecules of PS-II are first accepted by
- Pheophytin
- Ferredoxin
- Cytochrome f
- Cytochrome b
12. Non cyclic photophosphorylation results in the production of
- NADH
- NADPH
- ATP
- ATP and NADPH
13. DCMU inhibits
- PS-I
- PS-II
- Oxidative phosphorylation
- It destroys chloroplast
14. Maximum photosynthesis occurs in
- Blue light
- Red light
- White light
- Green light
15. The first acceptor of CO2 in C4 plants is
- Aspartic acid
- Malic acid
- Oxaloacetic acid
- Phosphoenolpyruvate
16. The first product of C4 pathway is
- PGA
- DHAP
- Oxaloacetate
- Phosphoenolpyruvate
17. The two pigment system theory of photosynthesis was proposed by
- Aron
- Blackman
- Hill
- Emerson
18. H2 donor during photosynthesis is
- ATP
- NADP
- NADPH
- NADH
Also Read: Photosynthe
19. The minerals involved in spitting reaction during photosynthesis is
- Potassium and manganese
- Magnesium and chlorine
- Potassium and chlorine
- Manganese and chlorine
20. Water-soluble photosynthetic pigment is
- Chlorophyll a
- Xanthophyll
- Anthocyanin
- Chlorophyll d
Answer Key
1- a
|
2- d
|
3- d
|
4- c
|
5- d
|
6- c
|
7- b
|
8- d
|
9- c
|
10- a
|
11- a
|
12- d
|
13- b
|
14- b
|
15- d
|
16- c
|