Photosynthesis in Higher Plants · Question 3

How many turns of Calvin cycle are required for the formation of three molecules of glucose?

1. 18
2. 6
3. 3
4. 1

Photorespiration reaction catalyzed by RuBisCo is shown below: RuBP + O2 3-Phosphoglycerate + X Identify “X” from the given options:

1. Malate
2. Phosphoenolpyruvate
3. 2-Phosphoglycolate
4. Oxaloacetate

Which pigment has absorption peak at 700 nm in the photosynthetic reaction centre PS I (P700)?

1. Carotenoids
2. Chlorophyll b
3. Chlorophyll a
4. Xanthophylls

Which of the following statements regarding photorespiration are correct?

1. (A) and (B) only
2. (A) and (D) only
3. (C) and (D) only
4. (B) and (D) only

Select the correct sequence of experiments that led to a gradual understanding of photosynthesis in green plants.

1. Production of glucose role of air release of oxygen absorption spectra of chlorophyll a and b
2. Absorption spectra of chlorophyll a and b production of glucose release of oxygen role of air
3. Role of air release of oxygen production of glucose absorption spectra of chlorophyll a and b
4. Release of oxygen production of glucose absorption spectra of chlorophyll a and b role of air

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