Photosynthesis Quiz

What is the primary function of photosynthesis?

• To produce carbon dioxide

• To convert chemical energy into light energy

• To convert light energy into chemical energy

• To decompose organic matter

Where do the light-dependent reactions of photosynthesis occur?

• In the stroma of the chloroplast

• In the thylakoid membranes of the chloroplast

• In the mitochondria

• In the cytoplasm

What is the role of chlorophyll in photosynthesis?

• To produce glucose

• To absorb water

• To release oxygen

• To capture sunlight

Which molecule is produced as a result of the Calvin cycle?

• ATP

• Glucose

• Oxygen

• NADPH

What is the first phase of the Calvin cycle?

• Carbon fixation

• Reduction

• Photolysis

• Regeneration

How many turns of the Calvin cycle are needed to produce one molecule of glucose?

• Five

• Three

• Four

• Six

Which organisms, besides plants, are capable of photosynthesis?

• Bacteria and fungi

• Viruses and algae

• Algae and cyanobacteria

• Fungi and algae

What is the significance of photosynthesis in ecosystems?

• It provides energy for the sun

• It regulates water cycles

• It decomposes organic matter

• It supports food chains and oxygen production

What is released into the atmosphere as a byproduct of photosynthesis?

• Carbon dioxide

• Nitrogen

• Hydrogen

• Oxygen

Why is photosynthesis crucial for life on Earth?

• It decomposes waste

• It provides oxygen and food

• It absorbs sunlight

• It produces carbon dioxide