1. What happens during light reaction
(A) CO2 reacts with H2
(B) Synthesis of PGAL
(C) Lysis of water molecule
(D) CO2 combines with H2O
Answer: (C)
2. Photosynthesis takes place
(A) Only in green light
(B) Only in sunlight
(C) In visible light obtained from any source
(D) Only in high intensity of light
Answer: (C)
3. Chlorophyll-a differes from chlorophyll-b in having---
(A) Methly group instead of aldehyde group
(B) Aldehyde group instead of methyl group
(C) Methyl group instead of ethyl group
(D) Only phytol tail instead of head
Answer: (A)
4. In non-cyclic photophosphorylation
(A) ATP is generated
(B) Both PSI and PSII are involved
(C) Electron flow is unidirectional
(D) All the above
Answer: (D)
5. During photosynthesis the reaction when PGA is converted into PGAL, is called
(A) Isomerization
(B) Reduction
(C) Oxidation
(D) Phosphorylation
Answer: (B)
6. In C3 pathway, the first stable compound is
(A) PGAL
(B) OAA
(C) PGA
(D) RUDP
Answer: (C)
7. In con-cyclic photophosphorylation, the electron emitted by P680 is replaced by electron from
(A) NADP
(B) Water
(C) Ferridoxin
(D) Chlorophyll-a
Answer: (B)
8. 85-90% (9/10) of all photosynthesis in the world is carried out by
(A) Shrubs
(B) Algae of the oceans
(C) Herbs
(D) Scientists in the laboratory
Answer: (B)
9. The source of oxygen evolved during photosynthesis is
(A) H2O
(B) CO2
(C) chl-a
(D) glucose
Answer: (A)
10. In C4 plants, synthesis of glucose occurs in
(A) Spongy cells
(B) Bundle sheath cells
(C) Mesophyll cells
(D) Palisade cells
Answer: (B)
11. In cyclic and non-cyclic photophosphorylation, the first acceptor of electron are
(A) Plastoquinone and ferridoxin
(B) Cyt b6 and cyt. f
(C) Ferridoxin in both
(D) Ferridoxin and plastoquinone respt.
Answer: (D)
12. Primary and secondary processes of Photosynthesis takes place in ______ and ______ respectively.
(A) Stroma and grana
(B) Stroma and lamellae
(C) Thylakoid and quantasome
(D) Grana and stroma
Answer: (D)
13. Which one occurs during both cyclic and non-cyclic photophosphorylation
(A) Formation of ATP
(B) Release of O2
(C) Formation of NADPH2
(D) Involvement of both PSI and PSII
Answer: (A)
14. The prerequisities of Calvins cycle are
(A) H2O, CO2, ATP
(B) ATP, H2O, NADPH2
(C) CO2, ATP, NADPH2
(D) NADPH2, H2O, CO2
Answer: (C)
15. The photochemical process in photosynthesis which needs both PSI and PSII also involves
(A) Photolysis of water
(B) Z-scheme of electron transfer
(C) Synthesis of assimilatory power
(D) All of these
Answer: (D)
16. For synthesis of one molecule of glucose, the requirement of ATP and NADPH2 is respectively
(A) 15 and 10
(B) 12 and 8
(C) 30 and 15
(D) 18 and 12
Answer: (D)
17. Which of the following element is needed for chlorophyll biosynthesis?
(A) Copper
(B) Magnesium
(C) Calcium
(D) Chlorine
Answer: (B)
18. In the calvin cycle, the assimilatory power is used during
(A) Formation of 3-PGA
(B) Conversion of 3-PGA to 3-PGAL
(C) Formation of fructose 1-6 diphsophate from PGAL
(D) Formation of glucose from fructose 1-6 diphosphate
Answer: (B)
19. The two enzymes responsible for primary carboxylation in C3 and C4 pathway, respectively are
(A) RUBP carboxylase and RUBP oxygenase
(B) PEP carboxylase and RUBP carboxylase
(C) RUBP carboxylase and PEP carboxylase
(D) PEP carboxylase and pyruvate carboxylase
Answer: (C)
20. _______ are placed one above the other to form stack of coins
(A) oxysomes
(B) F1 particles
(C) cristae
(D) thylakoids
Answer: (D)
21. During Photosynthesis
(A) Both CO2 and water get oxidised
(B) Both CO2 and water get reduced
(C) Water is oxidised and CO2 is reduced
(D) Water reduced and CO2 is oxidized
Answer: (C)
22. Unidirectional flow of e- in non-cyclic photophosphorylation is
(A) PS II PS I NADP water
(B) Water PSII PS I NADP
(C) PS I NADP water PS II
(D) Water PS I PS II NADP
Answer: (B)
23. ATP synthesis during light reaction is
(A) Photophosphorylation
(B) Photolysis
(C) Oxidative phosphorylation
(D) Phosphorylation
Answer: (A)
24. In photosynthesis, the first step is
(A) Phtolysis of water
(B) Production of NADPH2
(C) Photoexcitation of chlorophyll
(D) Synthesis of ATP
Answer: (C)
25. Calvin was given Nobel prize in 1961 for his discovery of
(A) Mode of carbon fixation
(B) Photosynthesis
(C) Photolysis of water
(D) Light reaction
Answer: (A)
(A) CO2 reacts with H2
(B) Synthesis of PGAL
(C) Lysis of water molecule
(D) CO2 combines with H2O
Answer: (C)
2. Photosynthesis takes place
(A) Only in green light
(B) Only in sunlight
(C) In visible light obtained from any source
(D) Only in high intensity of light
Answer: (C)
3. Chlorophyll-a differes from chlorophyll-b in having---
(A) Methly group instead of aldehyde group
(B) Aldehyde group instead of methyl group
(C) Methyl group instead of ethyl group
(D) Only phytol tail instead of head
Answer: (A)
4. In non-cyclic photophosphorylation
(A) ATP is generated
(B) Both PSI and PSII are involved
(C) Electron flow is unidirectional
(D) All the above
Answer: (D)
5. During photosynthesis the reaction when PGA is converted into PGAL, is called
(A) Isomerization
(B) Reduction
(C) Oxidation
(D) Phosphorylation
Answer: (B)
6. In C3 pathway, the first stable compound is
(A) PGAL
(B) OAA
(C) PGA
(D) RUDP
Answer: (C)
7. In con-cyclic photophosphorylation, the electron emitted by P680 is replaced by electron from
(A) NADP
(B) Water
(C) Ferridoxin
(D) Chlorophyll-a
Answer: (B)
8. 85-90% (9/10) of all photosynthesis in the world is carried out by
(A) Shrubs
(B) Algae of the oceans
(C) Herbs
(D) Scientists in the laboratory
Answer: (B)
9. The source of oxygen evolved during photosynthesis is
(A) H2O
(B) CO2
(C) chl-a
(D) glucose
Answer: (A)
10. In C4 plants, synthesis of glucose occurs in
(A) Spongy cells
(B) Bundle sheath cells
(C) Mesophyll cells
(D) Palisade cells
Answer: (B)
11. In cyclic and non-cyclic photophosphorylation, the first acceptor of electron are
(A) Plastoquinone and ferridoxin
(B) Cyt b6 and cyt. f
(C) Ferridoxin in both
(D) Ferridoxin and plastoquinone respt.
Answer: (D)
12. Primary and secondary processes of Photosynthesis takes place in ______ and ______ respectively.
(A) Stroma and grana
(B) Stroma and lamellae
(C) Thylakoid and quantasome
(D) Grana and stroma
Answer: (D)
13. Which one occurs during both cyclic and non-cyclic photophosphorylation
(A) Formation of ATP
(B) Release of O2
(C) Formation of NADPH2
(D) Involvement of both PSI and PSII
Answer: (A)
14. The prerequisities of Calvins cycle are
(A) H2O, CO2, ATP
(B) ATP, H2O, NADPH2
(C) CO2, ATP, NADPH2
(D) NADPH2, H2O, CO2
Answer: (C)
15. The photochemical process in photosynthesis which needs both PSI and PSII also involves
(A) Photolysis of water
(B) Z-scheme of electron transfer
(C) Synthesis of assimilatory power
(D) All of these
Answer: (D)
16. For synthesis of one molecule of glucose, the requirement of ATP and NADPH2 is respectively
(A) 15 and 10
(B) 12 and 8
(C) 30 and 15
(D) 18 and 12
Answer: (D)
17. Which of the following element is needed for chlorophyll biosynthesis?
(A) Copper
(B) Magnesium
(C) Calcium
(D) Chlorine
Answer: (B)
18. In the calvin cycle, the assimilatory power is used during
(A) Formation of 3-PGA
(B) Conversion of 3-PGA to 3-PGAL
(C) Formation of fructose 1-6 diphsophate from PGAL
(D) Formation of glucose from fructose 1-6 diphosphate
Answer: (B)
19. The two enzymes responsible for primary carboxylation in C3 and C4 pathway, respectively are
(A) RUBP carboxylase and RUBP oxygenase
(B) PEP carboxylase and RUBP carboxylase
(C) RUBP carboxylase and PEP carboxylase
(D) PEP carboxylase and pyruvate carboxylase
Answer: (C)
20. _______ are placed one above the other to form stack of coins
(A) oxysomes
(B) F1 particles
(C) cristae
(D) thylakoids
Answer: (D)
21. During Photosynthesis
(A) Both CO2 and water get oxidised
(B) Both CO2 and water get reduced
(C) Water is oxidised and CO2 is reduced
(D) Water reduced and CO2 is oxidized
Answer: (C)
22. Unidirectional flow of e- in non-cyclic photophosphorylation is
(A) PS II PS I NADP water
(B) Water PSII PS I NADP
(C) PS I NADP water PS II
(D) Water PS I PS II NADP
Answer: (B)
23. ATP synthesis during light reaction is
(A) Photophosphorylation
(B) Photolysis
(C) Oxidative phosphorylation
(D) Phosphorylation
Answer: (A)
24. In photosynthesis, the first step is
(A) Phtolysis of water
(B) Production of NADPH2
(C) Photoexcitation of chlorophyll
(D) Synthesis of ATP
Answer: (C)
25. Calvin was given Nobel prize in 1961 for his discovery of
(A) Mode of carbon fixation
(B) Photosynthesis
(C) Photolysis of water
(D) Light reaction
Answer: (A)
No comments:
Post a Comment