Prepare for the Foundations of Biology Exam 1. Dive into key biological concepts with multiple choice questions, hints, and explanations. Ace the exam with our efficient study methods!

Multiple Choice

Stage 2 of photosynthesis results in:

Stage 2 focuses on the Calvin cycle, where carbon dioxide is fixed and reduced to carbohydrate using the chemical energy stored as ATP and NADPH from the light-dependent reactions. In the chloroplast stroma, CO2 is incorporated into sugars through a series of steps that use ATP for energy and NADPH as reducing power, ultimately producing triose phosphates that can be assembled into glucose and other carbohydrates. This is why Stage 2 results in converting CO2 into carbohydrate with the help of chemical energy produced earlier. Oxygen production and water splitting occur during the light-dependent reactions in the thylakoid membranes, not in Stage 2, and light absorption by pigments also happens in those initial reactions.

Stage 2 focuses on the Calvin cycle, where carbon dioxide is fixed and reduced to carbohydrate using the chemical energy stored as ATP and NADPH from the light-dependent reactions. In the chloroplast stroma, CO2 is incorporated into sugars through a series of steps that use ATP for energy and NADPH as reducing power, ultimately producing triose phosphates that can be assembled into glucose and other carbohydrates. This is why Stage 2 results in converting CO2 into carbohydrate with the help of chemical energy produced earlier.

Oxygen production and water splitting occur during the light-dependent reactions in the thylakoid membranes, not in Stage 2, and light absorption by pigments also happens in those initial reactions.