Identify the correct statements regarding RuBisCO:

I:	It catalyzes the carboxylation of \(CO_2\) to ribulose 1,5-bisphosphate.
II:	It initiates photorespiration when the \(CO_2/O_2\) ratio is low.
III:	It catalyzes the reduction of two molecules of PGAL to form glucose.

 

1.	I and II only	2.	I and III only
3.	II and III only	4.	I, II and III

The products of non-cyclic photophosphorylation include:

The ${\mathrm{C}}_3$ and ${\mathrm{C}}_4$ photosynthesis pathways are so called because the initial carbon fixation product in them are respectively:

The extra ATP required [as compared to NADPH] in Calvin cycle comes from:

In the given simplified diagram of the Calvin Cycle,
ATP is utilized at points:

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

Light dependent reactions are so called because they require light:

The chronological order of organelles involved in the photorespiration cycle is:

The space of thylakoid is separated from the stroma by a membrane. If the membrane capability to maintain an environment in the thylakoid space distinct from stroma is compromised, the process most directly affected would be:
1. the splitting of water
2. the absorption of photons by chlorophyll
3. the reduction of ${\mathrm{NADP}}^{+}$
4. the synthesis of ATP

In the diagram showing relation between Calvin cycle and Photorespiration the molecule labeled X can be:

1. Oxygen
2. Ammonia
3. Nitric oxide
4. Hydrogen sulfide

Chemiosmosis in chloroplasts is possible because of: