Answer: Option C. -> 12 NADPH and 18 ATP  
:
C
These are generated during the non-cyclic photophosphorylation.

Answer: Option C. -> Starch
:
C
The fixation of atmospheric CO${}_2$ to carbohydrate is photosynthesis. The carbohydrate that is formed through photosynthesis primarily is glucose. However, glucose being highly osmotic cannot be stored in the plant cells as such. Therefore it is converted into starch, a polymer of glucose that is not water-soluble or osmoreactive.
Proteins are synthesized from aminoacids and is not a carbohydrate, therefore not an end-product of photosynthesis. Similarly fatty acids are also not end-products of photosynthesis. Cellulose however is a carbohydrate polymer of glucose, but cellulose is not assimilated easily and is produced more for structural reasons by the plant.

Answer: Option A. -> Effective pumping of CO2 in to bundle sheath cells.
:
A
The fixation of CO₂in C₄ plants takes place in two places and by two different organic compounds. Phosphoenol pyruvate (PEP) is found in mesophyll cells which primarily fixes atmospheric CO₂into oxaloacetic acid ( 4C).
RuBisCO is present in bundle sheath cells where fixation of CO₂in hexose sugars takes place.CO₂is primarily fixed by PEP carboxylase because this enzyme has greater affinity to CO₂than RuBisCO.

Answer: Option A. -> are pigments
:
A
These are the primary photosynthetic pigments.

Answer: Option B. -> RuBP +CO2
:
B
In carboxylation, ribulose 1,5 bisphosphate (RuBP) (= Ribulose diphosphate) acts asCO₂ acceptor and 6 molecules of RuBP react with 6 molecules of CO₂and 6 molecules of water giving rise to 12 molecules of 3 phosphoglyceric acid.

Answer: Option D. -> light is absorbed and funneled to reaction-center chlorophyll a.
:
D
Light is absorbed by various pigments and funneled to the chlorophyll molecule at the reaction center. This leads to the flow of electrons through the ETC, splitting of water and the formation of ATP and NADPH.

Answer: Option B. -> Hatch and slack cycle
:
B
In the Hatch- slack pathway, first product of fixation is a 4 carbon compound, oxaloacetic acid. Hence they are called plants. This acid is converted to another 4C acid-the malic acid.

Answer: Option A. -> stomata
:
A
These are the sites of transpiration and exchange of gases as well.

Answer: Option B. -> CAM
:
B
They are said to be scotoactive with stomata closed during the day to reduce transpiration.

Answer: Option D. -> CAM plants - open their stomata during the day and close them at night to avoid photorespiration
:
D
CAM plants have scotoactive stomata which open during the night and close during the day.