Photosynthesis in Higher Plants · Question 8

Which of the following statements about RuBisCO is true?

1. It is an enzyme involved in the photolysis of water
2. It catalyzes the carboxylation of RuBP
3. It is active only in the dark
4. It has higher affinity for oxygen than carbon dioxide

Match List-I with List-II Choose the option with all correct matches.

1. A-I, B-II, C-IV, D-III
2. A-I, B-IV, C-III, D-II
3. A-III, B-IV, C-II, D-I
4. A-III, B-I, C-II, D-IV

How many molecules of ATP and NADPH are required for every molecule of CO2 fixed in the Calvin cycle?

1. 2 molecules of ATP and 3 molecules of NADPH
2. 2 molecules of ATP and 2 molecules of NADPH
3. 3 molecules of ATP and 3 molecules of NADPH
4. 3 molecules of ATP and 2 molecules of NADPH

Which of the following are required for the dark reaction of photosynthesis? Choose the correct answer from the options given below:

1. A, B and C only
2. B, C and D only
3. C, D and E only
4. D and E only

Given below are two statements: In the light of the above statements, choose the correct answer from the options given below:

1. Both Statement I and Statement II are true
2. Both Statement I and Statement II are false
3. Statement I is true but Statement II is false
4. Statement I is false but Statement II is true

Which of the following are required for the light reaction of Photosynthesis? Choose the correct answer from the options given below:

1. A, C, D and E only
2. C, D and E only
3. A and B only
4. A, C and E only

Which one of the following products diffuses out of the chloroplast during photosynthesis?

1. ADP
2. NADPH
3. O2
4. ATP

Observe the given figure. Identify the different stages labelled with alphabets by selecting the correct option. [figure]

1. A-Carboxylation, B-Regeneration, C-Reduction
2. A-Reduction, B-Decarboxylation, C-Regeneration
3. A-Carboxylation, B-Reduction, C-Regeneration
4. A-Reduction, B-Carboxylation, C-Regeneration

How many ATP and NADPH are required for the synthesis of one molecule of Glucose during Calvin cycle?

1. 18 ATP and 12 NADPH
2. 12 ATP and 16 NADPH
3. 18 ATP and 16 NADPH
4. 12 ATP and 12 NADPH

The reaction centre in PS II has an absorption maximum at

1. 700 nm
2. 660 nm
3. 780 nm
4. 680 nm