RuBP carboxylase, PEPcase, pyruvate dehydrogenase, ATPase, cytochrome oxidase, hexokinase, lactate dehydrogenase.
Select/choose enzymes from the list above which are involved in
(a) Photosynthesis
(b) Respiration
(c) Both in photosynthesis and respiration

Explanation

RuBP Carboxylase : It is useful in dark reaction which does fixation of `CO_(2) i n C_(3)` pathway.
PEPcase : It is useful for fixation of `CO_(2)` in photosynthesis in `C_(4)` pathway. SO 4C oxalo acetate is formed.
Pyruvate : It is useful in aerobic respiration, which forms Acetyl. CO-A from pyruvic acid
Pyruvic acid + Co-A + NAD `+ underset("Pyruvate dehydrogenase ")overset(Mg^(+2))to "Acetyl "Co-A + CO_(2) + NADH + H^(+)`
ATPase : It is useful in both respiration and photosynthesis. In both processes, it is associated with proton pump in electron transport system . ATP is formed by ATPase by transport of proton.
Cytochrome oxidase : It is also useful in respiration and photo synthesis. It is an `e^(-)` carriers substance.
Hexokinase : It is useful in glycolysis in respiration. By the glucose 6 phosphate is formed from glucose during that one ATP is used.

Lactate dehydrogenase : It is useful in anaerobic respiration . eg. Lactobacillus
Pyruvic acid + NADH ` underset("dehydrogenase ")overset("Lactate") to C_(3) H_(6) O_(3) + NDA`