First transistory chemical formed by reaction between CO₂ and RUBP is

• PGA

• PGAL/ GAP

• dihydroxy acetone phosphate

• 2 carboxy, 3-keto, 1-5 biphosphoribotol

242.

The carboxylating enzyme present in bundle sheath cells of maize leaves is

• RUBP carboxylase

• hexokinase

• carbonic anhydrase

• PEP-carboxylase

The maximum elements found in cytoplasm is

• C

• He

• H

• N

Calvin cycle takes place in

• grana

• stroma

• intra thylakoid

• matrix

Which of the following is formed in light reaction of photosynthesis?

• ATP

• NADPH₂

• O₂

• All of the above

The plant group in which stomata opens in night is

• mesophytes

• succulents

• hydrophytes

• None of the above

Chlorophyll- a is characterized by the side group

• methyl

• aldehyde

• phytol

• ketone

Photorespiration takes place in plants where carbon fixation occurs through

• Calvin cycle

• Hatch and Slack cycle

• Glycolysis

• Krebs' cycle

Blackman's law of limiting factor is applied to

• respiration

• transpiration

• photorespiration

• photosynthesis

In sugarcane plant, ¹⁴CO₂ is fixed in a malic acid, in which the enzyme that fixes CO₂ is

• ribulose phosphate kinase

• fructose phosphatase

• ribulose biphosphate carboxylase

• phosphoenol pyruvic acid carboxylase