Photosynthesis Quiz

Plants, algae, and some photosynthetic protists and bacteria are photoautotrophs. What does this mean?

• They consume organic material for energy.

• They produce their own food through photosynthesis.

• They rely on other organisms for food.

• They convert nitrogen into usable forms.

What are chloroplasts and what do they contain?

• Chloroplasts are organelles responsible for cellular respiration, containing DNA and ribosomes.

• Chloroplasts are organelles responsible for photosynthesis, containing chlorophyll, thylakoids, and stroma.

• Chloroplasts are single-membrane structures that store nutrients in plant cells.

• Chloroplasts are bacteria that live inside plant cells and aid in nutrient absorption.

What is a redox process in the context of photosynthesis?

• A process in which water is oxidized and carbon dioxide is reduced.

• A process in which oxygen is produced as a byproduct.

• A process in which chlorophyll captures sunlight.

• A process in which glucose is synthesized from carbon dioxide and water.

Are chloroplasts surrounded by a single membrane?

• True

• False

How do the reactant molecules of photosynthesis reach chloroplasts in leaves?

• Through active transport only.

• Through diffusion and active transport.

• Through osmosis only.

• Through endocytosis.

Heterotrophs are organisms that produce their own food through photosynthesis. Is this statement true or false?

• True

• False

Which of the following is the primary source of energy for photosynthesis?

• Heat

• Electricity

• Sunlight

• Wind

What is the main function of chlorophyll in photosynthesis?

• Absorb carbon dioxide

• Produce glucose

• Absorb light energy

• Release oxygen

Which organelle is responsible for carrying out photosynthesis in plant cells?

• Mitochondria

• Nucleus

• Golgi apparatus

• Chloroplasts

During photosynthesis, oxygen is released as a byproduct of which process?

• Oxidation of water

• Reduction of carbon dioxide

• Synthesis of glucose

• Breakdown of chlorophyll