Photosynthesis Quiz

Photosynthesis is the process by which plants, algae, and some bacteria convert _________ into organic compounds.

• Oxygen

• Water

• Carbon dioxide

• Nitrogen

In which organelle does photosynthesis primarily occur in plant cells?

• Mitochondrion

• Chloroplast

• Nucleus

• Endoplasmic reticulum

What is the primary pigment responsible for capturing light energy during photosynthesis?

• Chlorophyll

• Xanthophyll

• Carotenoid

• Melanin

During the light-dependent reactions of photosynthesis, what molecule is split to release oxygen gas?

• Glucose

• Carbon dioxide

• Water

• ATP

Which of the following is a product of the light-dependent reactions?

• Carbon dioxide

• Glucose

• Oxygen

• NADPH

The Calvin cycle, also known as the dark reactions, takes place in which part of the chloroplast?

• Thylakoid membrane

• Stroma

• Granum

• Outer membrane

What is the primary purpose of the Calvin cycle?

• To produce oxygen

• To convert light energy into chemical energy

• To synthesize glucose and other organic molecules

• To release carbon dioxide

In the Calvin cycle, carbon dioxide is initially fixed to which molecule?

• Glucose

• ATP

• Ribulose-1,5-bisphosphate (RuBP)

• NADPH

How many carbon atoms are in a molecule of glucose produced during photosynthesis?

• 2

• 6

• 12

• 18

What is the ultimate source of energy for photosynthesis on Earth?

• Sunlight

• Geothermal energy

• Fossil fuels

• Wind