Understanding Photosynthesis

What is the process called that plants use to make food?

• Digestion

• Transpiration

• Respiration

• Photosynthesis

Which part of the plant is primarily responsible for photosynthesis?

• Leaves

• Roots

• Flowers

• Stems

What do plants need from sunlight to perform photosynthesis?

• Carbon dioxide from sunlight

• Water from sunlight

• Nutrients from sunlight

• Energy from sunlight

What gas do plants take in during photosynthesis?

• Carbon dioxide

• Nitrogen

• Hydrogen

• Oxygen

What is produced as a result of photosynthesis?

• Glucose and oxygen

• Nitrogen and hydrogen

• Carbon dioxide and water

• Sugar and starch

Why is photosynthesis important for the environment?

• Photosynthesis decreases carbon dioxide levels in the atmosphere.

• Photosynthesis is primarily responsible for water purification.

• Photosynthesis creates heat energy for plants.

• Photosynthesis is important because it produces oxygen and organic matter, supporting life and regulating the environment.

Can photosynthesis occur without sunlight?

• No, photosynthesis cannot occur without sunlight.

• Photosynthesis requires water but not sunlight.

• Yes, photosynthesis can occur in the dark.

• Photosynthesis can happen with artificial light only.

What pigment in plants helps capture sunlight?

• Carotene

• Chlorophyll

• Xanthophyll

• Anthocyanin

How do plants use the sugar produced in photosynthesis?

• Plants convert sugar into water.

• Plants use the sugar for energy, storage, and building organic molecules.

• Plants use sugar to produce oxygen.

• Plants discard sugar as waste.

What are the two main stages of photosynthesis?

• Light absorption and energy storage

• Chlorophyll activation and oxygen release

• Photosynthesis and respiration

• Light-dependent reactions and light-independent reactions (Calvin cycle)