9. Photosynthesis

What is the primary purpose of photosynthesis in plants?

In which zone would photosynthetic algae most likely be found?

Mice eat corn, and hawks eat mice. What is the ultimate source of all the energy in this food chain?

Which of the following best describes evapotranspiration in the context of plant biology?

In the context of photosynthesis, what is the largest source of electrons used to reduce NADP$^+$ to NADPH?

Where are photosystems located in plant cells?

How did the evolution of photosynthetic life alter Earth's atmosphere?

Which structures in plant cells are responsible for capturing energy from sunlight during photosynthesis?

After 3-phosphoglycerate (3-PGA) is phosphorylated during the Calvin cycle, it is reduced by which of the following molecules?

In chloroplasts, stacks of grana (singular: granum) are connected to each other by which of the following structures?

In the context of photosynthetic organisms, how does melanin protect cellular molecules from UV damage?

How does the concentration of oxygen produced during photosynthesis affect fish living in a pond?

Why do some plants in the tundra retain their dead leaves instead of shedding them?

Photosynthesis is the major source of which of the following gases in Earth's atmosphere?

If a plant leaf has fewer stomata, how would this affect its ability to retain water, especially in dry conditions?