Photosynthesis Quiz

What do autotrophs primarily use to convert light energy into chemical energy?

• Chloroplasts

• Thermal energy

• Nutrients from the soil

• Gaseous elements

Where does the energy come from that helps plants to perform photosynthesis?

• Sunlight

• Soil nutrients

• Water

• Oxygen

What term is used to describe organisms that make their own food?

• Autotrophs

• Herbivores

• Carnivores

• Omnivores

What do plants mainly release as a byproduct of photosynthesis?

• Oxygen

• Carbon dioxide

• Nitrogen

• Water

What happens to sugar once it is made by the plant?

• It is used by the plant or transported to other parts of the plant.

• It evaporates into the air.

• It turns into water.

• It is stored as minerals in the soil.

Where does photosynthesis primarily take place in a plant?

• Leaves

• Roots

• Stems

• Flowers

How are carbon dioxide and oxygen involved in photosynthesis?

• Plants take in carbon dioxide and release oxygen.

• Plants release carbon dioxide and take in oxygen.

• Plants only use oxygen for photosynthesis.

• Carbon dioxide and oxygen are not related to photosynthesis.

What is the purpose of decomposers in an ecosystem?

• To break down remaining organic matter of dead organisms

• To perform photosynthesis

• To produce food directly from sunlight

• To consume herbivores

What is the significance of the mesophyll layer in leaves?

• It contains cells that undergo photosynthesis.

• It covers the leaf with a protective waxy film.

• It transports water and minerals from the roots.

• It secretes substances to repel insects.

How do plants obtain water needed for photosynthesis?

• Through their roots

• Through their leaves

• From the air

• Through sunlight