Question

evaluate their list below. based on the data and your knowledge of photosynthesis, what would you advise mallory and allen to consider changing in their experiment if they wanted to increase the rate of photosynthesis? choose all that apply. place the plant under a red light. place the plants under a blue light. place the plant under a green light. place the plants in an oxygen rich environment. place the plants in a carbon dioxide rich environment.

Explanation:

• Red light: Chlorophyll \(a\) and \(b\) absorb light in the red region (\(620 - 750\ nm\)). Higher absorption leads to more energy for photosynthesis.
• Blue light: Chlorophyll \(a\) and \(b\) also absorb in the blue region (\(450 - 495\ nm\)). Absorption here provides energy for the light - dependent reactions.
• Carbon dioxide: \(CO_2\) is a reactant in the Calvin cycle (light - independent reactions) of photosynthesis. More \(CO_2\) (within certain limits) can increase the rate of glucose production.
• Green light: Chlorophyll reflects green light, so it is not effectively used for photosynthesis.
• Oxygen - rich environment: Oxygen is a product of photosynthesis. An oxygen - rich environment does not directly increase the rate of photosynthesis (in fact, in some cases, high oxygen can lead to photorespiration which is a wasteful process in \(C_3\) plants, but that is beyond the basic scope here).

Answer:

Place the plant under a red light, Place the plants under a blue light, Place the plants in a carbon dioxide rich environment.