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- 1. Multiple Choice
1. Assertion (A): Increase in Proton gradient inside lumen responsible for ATP synthesis
Reason (R): Oxygen evolving complex of PS I located on thylakoid membrane facing Stroma, releases H1 ions
a. Both Assertion and Reason are True.
b. Assertion is True and Reason is False.
c. Reason is True and Assertion is False. d. Both Assertion and Reason are False.
d. Both Assertion and Reason are False.
- 2. Multiple Choice
2. Which chlorophyll molecule does not have a phytol tail?
a. Chl- a
b. Chl-b
c. Chl- c
d. Chl –d
- 3. Multiple Choice
3. The correct sequence of flow of electrons in the light reaction is
a. PS II, plastoquinone, cytochrome, PS I, ferredoxin.
b. PS I, plastoquinone, cytochrome, PS II ferredoxin.
c. PS II, ferredoxin, plastoquinone, cytochrome, PS I.
d. PS I, plastoquinone, cytochrome, PS II, ferredoxin.
- 4. Multiple Choice
4. For every CO2 molecule entering the C3 cycle, the number of ATP & NADPH Required
a. 2ATP 1 2NADPH
b. 2ATP 1 3NADPH
c. 3ATP 1 2NADPH
d. 3ATP 1 3NADPH
- 5. Multiple Choice
5. Identify true statement regarding light reaction of photosynthesis?
a. Splitting of water molecule is associate with PS I.
b. PS I and PS II involved in the formation of NDPH1H1.
c. The reaction center of PS I is Chlorophyll a with absorption peak at 680 nm.
d. The reaction center of PS II is Chlorophyll a with absorption peak at 700 nm.
b. PS I and PS II involved in the formation of NDPH1H1.
c. The reaction center of PS I is Chlorophyll a with absorption peak at 680 nm.
d. The reaction center of PS II is Chlorophyll a with absorption peak at 700 nm.
- 6. Multiple Choice
6. C4 plants are more efficient in photosynthesis than C3 plants due to
a. presence of thin cuticle
b. lower rate of photorespiration
c. higher leaf area
d. presence of larger number of chloroplast in the leaf cells.
- 7. Multiple Choice
7. Chlorophyll b is
a. C54H70 O6 N4 Mg
b. C55H70 O6 N4 Mg
c. C55H72 O5 N4 Mg
d. C45H72 O5 N4 Mg
- 8. Multiple Choice
8. Synthesis of ADP + Pi ATP in grana is
a. phosphorylation
b. photophosphorylation
c. oxidative phosphorylation
d. photolysis
- 9. Multiple Choice
9. In chloroplast, chlorophyll is present in the
a. stroma
b. outer membrane
c. inner membrane
d. thylakoids
- 10. Multiple Choice
10. Electrons from the excited chlorophyll molecule of photosystem II are accepted first by
a. quinone
b. ferredoxin
c. cytochrome-b
d. cytochrome-f
- 11. Multiple Choice
11. Read the following four statements A,B,C and D. Select the right option
A.Z scheme of light reaction takes place in the presence of PS I only
B. only PS I is functional in cyclic photophosphorylation
C. cyclic photophosphorylation results into synthesis of ATP and NADPH2
D. stroma lamellae lack PS II as well as NADP
a. A and B
b. B and C
c. C and D
d. B and D
- 12. Multiple Choice
12. Photolysis of each water molecule in light reaction will yield ___
a. 2 electrons and 4 protons
b. 4 electrons and 4 protons
c. 4 electrons and 3 protons
d. 2 electrons and 2 protons
- 13. Multiple Choice
13. Photosynthetic active radiation (PAR) has Mthe following range of wavelength
a. 400-700 nm
b. 450-920 nm
c. 340-450 nm
d. 500-600 nm
- 14. Multiple Choice
14. Phosphoenol pyruvate (PEP) is the primary CO2 acceptor in __
a. C3 plants
b. C4 plants
c. C2 plants
d. C3 and C4 plants
- 15. Multiple Choice
15. Emerson's enhancement effect and Red drop have been instrumental in the discovery of
a. two photosystems operating simultaneously
b. photophosphorylation and cyclic electron transport
c. oxidative phosphorylation
d. photophosphorylation and non-cyclic electron transport
- 16. Multiple Choice
16. The process which makes major difference between C3 and C4 plants is
a. glycolysis
b. calvin cycle
c. photorespiration
d. respiration
- 17. Multiple Choice
17. In a chloroplast the highest number of protons are found in
a. lumen of thylakoids
b. inter membrane space
c. antennae complex
d. stroma
- 18. Multiple Choice
18. Oxidative phosphorylation is
a. formation of ATP by transfer of phosphate group from a substrate to ADP
b. oxidation of phosphate group in ATP
c. Aaddition of phosphate group to ATP
d. formation of ATP by energy released from electrons during substrate oxidation.
- 19. Multiple Choice
19. ..................... is the primary pigment which acts as a reaction centre.
a) chlorophyll-a
b) chlorophyll-b
c) chlorophyll-c
d) chlorophyll-d
- 20. Multiple Choice
20. Chemiosmotic theory was proposed by
a)Hill
b)P.Mitchell
c)Hill and Emerson
d) Steward
- 21. Multiple Choice
21. Carotene is a ........................ of Vitamin A
a)Precursor
b)conduction
c)Responsible
d)Spectrum
- 22. Multiple Choice
22. Non-Cyclic Photophosporylation occurs in ......
a)PS-I & PS-II
b)PS-I
c) PS-II
d)None of these
- 23. Multiple Choice
23. .................. pigments are also called Shield pigments.
a) Chlorophyll-a
b) Chlorophyll-b
c) Chlorophyll-c
d) Carotenoids
- 24. Multiple Choice
24. ................. is the primary source of all food on earth.
a) Photosynthesis
b) Respiration
c)Transpiration
d)Guttation
- 25. Multiple Choice
25. Which pair is wrong?
a) C3 cycle - Maize
b) C4 cycle - Kranz anatomy
c) Calvin cycle - PGA
d) Hatch and Slack cycle - OAA
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