Name the process that takes place in chloroplasts, where plants harvest sunlight to produce sugars, involving light-dependent and light-independent reactions.

Name the process that takes place in chloroplasts, where plants harvest sunlight to produce sugars, involving light-dependent and light-independent reactions.

• A. Respiration
• B. Photosynthesis
• C. Glycolysis
• D. Transpiration

Answer: (D)

Photosynthesis is the process that takes place in chloroplasts where plants harvest sunlight to produce sugars. It occurs in two stages: light-dependent reactions and light-independent reactions. In the light-dependent steps, chlorophyll captures light energy in the thylakoid membranes to drive the production of ATP and NADPH while splitting water and releasing oxygen. In the light-independent steps, the Calvin cycle uses that ATP and NADPH to fix carbon dioxide and synthesize sugars like glucose. This combination of capturing light energy and building sugars in chloroplasts is why photosynthesis best fits the description. Other listed processes don’t fit: respiration releases energy from sugars in mitochondria, glycolysis breaks down glucose in the cytoplasm, and transpiration is just water loss from the plant.

Photosynthesis is the process that takes place in chloroplasts where plants harvest sunlight to produce sugars. It occurs in two stages: light-dependent reactions and light-independent reactions. In the light-dependent steps, chlorophyll captures light energy in the thylakoid membranes to drive the production of ATP and NADPH while splitting water and releasing oxygen. In the light-independent steps, the Calvin cycle uses that ATP and NADPH to fix carbon dioxide and synthesize sugars like glucose. This combination of capturing light energy and building sugars in chloroplasts is why photosynthesis best fits the description. Other listed processes don’t fit: respiration releases energy from sugars in mitochondria, glycolysis breaks down glucose in the cytoplasm, and transpiration is just water loss from the plant.