The first dark reaction or CO2 fixation product is-
1. 3C – Organic Acid
2. 6C – Organic Acid
3. 5C – Organic Acid
4. 1C – Organic Acid

The first product of C3 and C4 cycle are:
1. PGA, PGAL
2. PGA, OAA
3. PGAL, RuBP
4. PGAL, OAA

What is the primary acceptor of CO₂ in dark reaction?
1. Ketose sugar
2. Aldose sugar
3. Fatty acid
4. Sucrose

Which of the following is not a step of photosynthesis?
1. Decarboxylation
2. Carboxylation
3. Regeneration
4. Reduction

The order of three steps of Calvin cycle is-
1. Carboxylation- Reduction-Regeneration
2. Reduction-Regeneration- Carboxylation
3. Regeneration-Carboxylation- Reduction
4. Reduction- Carboxylation –Regeneration

Calvin Pathway occurs-
1. Only C₃
2. Only C₄
3. All photosynthetic plants
4. only in C₂ plants

The most crucial step of Calvin cycle-
1. Decarboxylation
2. Carboxylation
3. Regeneration
4. Reduction

How many molecules of 3-PGA are produced during a single run of carboxylation?
1. 3
2. 1
3. 2
4. 4

How many molecules of ATP and NADPH are utilized in the step of reduction?
1. 2,2
2. 2,3
3. 2,4
4. 2,5

For the removal of one molecule of Glucose, how many turns of fixation are required?
1. 3
2. 2
3. 6
4. 4