Review Questions

Which organelle is the site of photosynthesis in plant cells?

Fill in the blank: The green pigment that captures light energy for photosynthesis is called __________.

Which of the following is produced during the light reactions of photosynthesis?
A) Glucose
B) ATP and NADPH
C) Pyruvate
D) Carbon dioxide

True or False: The Calvin cycle requires light to function.

Match the part of the chloroplast (Column A) with its description (Column B):

1. Column A

   1. Thylakoid

   2. Stroma

   3. Grana

2. Column B
   A. Fluid surrounding thylakoids where Calvin cycle occurs
   B. Flattened saclike membranes containing pigments
   C. Stacks of thylakoids

Fill in the blank: The oxygen released during photosynthesis comes from splitting __________ molecules.

Which wavelengths of light are absorbed most effectively by chlorophyll a?
A) Green and yellow
B) Blue-violet and red
C) Orange and green
D) Infrared

What is the role of NADPH in photosynthesis?

Write the overall balanced chemical equation for photosynthesis.

Compare the main inputs and outputs of the light reactions and the Calvin cycle.

Which of the following is a direct product of the Calvin cycle?
A) ATP
B) Oxygen
C) Glucose
D) G3P (glyceraldehyde-3-phosphate)

Explain how the light-dependent reactions and the Calvin cycle are connected.

Fill in the blank: During chemiosmosis in the light reactions, ATP is generated by the enzyme __________.

Why do plants appear green to the human eye?

Application: If a plant is placed in an environment without carbon dioxide but with plenty of light, what part of photosynthesis will still occur and what part will stop? Explain.