Understanding Photosynthesis

What do plants use to make their food?

• Water and air alone

• Photosynthesis using sunlight, carbon dioxide, and water.

• Nutrients from soil and minerals

• Energy from the moonlight

What gas do plants take in during photosynthesis?

• Hydrogen

• Nitrogen

• Carbon dioxide

• Oxygen

What do plants release as a byproduct of photosynthesis?

• Oxygen

• Nitrogen

• Carbon dioxide

• Glucose

What is the main pigment in plants that helps with photosynthesis?

• Chlorophyll

• Carotene

• Xanthophyll

• Melanin

Where does photosynthesis mainly take place in a plant?

• In the chloroplasts of leaves.

• In the flowers of the plant.

• In the stems of the plant.

• In the roots of the plant.

What do plants need from sunlight to make food?

• Plants use sunlight to produce oxygen.

• Plants convert sunlight into water.

• Plants need sunlight to grow roots.

• Chlorophyll absorbs sunlight.

What is the process called when plants make their own food?

• Digestion

• Photosynthesis

• Respiration

• Transpiration

What is the role of water in photosynthesis?

• Water absorbs sunlight for photosynthesis.

• Water is a byproduct of photosynthesis.

• Water acts as a fertilizer for plants.

• Water provides electrons and protons for photosynthesis and releases oxygen.

Can photosynthesis happen at night? Why or why not?

• No, photosynthesis cannot happen at night because it requires sunlight.

• Photosynthesis occurs at night due to stored energy from the day.

• Photosynthesis can happen at night if there is enough water.

• Yes, photosynthesis can occur at night using moonlight.

What type of energy do plants convert during photosynthesis?

• mechanical energy

• thermal energy

• light energy

• nuclear energy