Question

question 37 (2 points)
why might rubisco be considered the most important enzyme on earth?
question 38 (7 points)
identify the labelled structures (a to g) in the diagram of the three cycles of the light independent reactions of photosynthesis. include the number of molecules for a, b, c, e and f only.

Explanation:

For Question 37: Rubisco is crucial as it catalyzes the first major step of carbon - fixation in the Calvin cycle of photosynthesis, enabling plants to convert inorganic carbon (CO₂) into organic compounds, which form the basis of the food chain and oxygen production.
For Question 38: Without seeing the actual diagram clearly, in a typical Calvin - cycle diagram for the light - independent reactions of photosynthesis: A is usually CO₂ (6 molecules in a full cycle for net synthesis of 1 glucose), B is ATP, C is NADPH (6 molecules in a full cycle for net synthesis of 1 glucose), E is ribulose - 1,5 - bisphosphate (RuBP), and F is ADP + Pi.

Answer:

Question 37: Rubisco catalyzes the first step of carbon - fixation in photosynthesis, converting CO₂ into organic compounds, which is fundamental for the food chain and oxygen production.
Question 38: A: CO₂ (6 molecules), B: ATP, C: NADPH (6 molecules), E: RuBP, F: ADP + Pi