1. Which of the following are required for the dark reaction of photosynthesis?
A. Light
B. Chlorophyll
C. CO₂
D. ATP
E. NADPH
Choose the correct answer from the options given below:

(1).C, D and E only

(2). D and E only

(3). A, B and C only

(4). B, C and D only

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

(1).3 molecules of ATP and 3 molecules of NADPH

(2). 3 molecules of ATP and 2 molecules of NADPH

(3). 2 molecules of ATP and 3 molecules of NADPH

(4). 2 molecules of ATP and 2 molecules of NADPH

3. Given below are two statements:
Statement I: In C₃ plants, some O₂ binds to RuBisCO, hence CO₂ fixation is decreased.
Statement II: In C₄ plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration
. In the light of the above statements, choose the correct answer from the options given below:

(1).Statement I is true but Statement II is false

(2). Statement I is false but Statement II is true

(3). Both Statement I and Statement II are true

(4). Both Statement I and Statement II are false

4. Which of the following statements about RuBisCO is true?

(1).It catalyzes the carboxylation of RuBP.

(2). It is active only in the dark.

(3). It has higher affinity for oxygen than carbon digxide.

(4). It is an enzyme involved in the photolysis of water.

5. Match List I with List II:

Choose the option with all correct matches

(1).A-I, B-IV, C-III, D-II

(2). A-III, B-IV, C-II, D-I

(3). A-III, B-I, C-II, D-IV

(4). A-I, B-lI, C-IV, D-III