Understanding Photosynthesis

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

• Photosynthesis

• Digestion

• Transpiration

• Respiration

Why do plants need sunlight for photosynthesis?

• Plants need sunlight to absorb water.

• Plants need sunlight to provide the energy for photosynthesis.

• Plants need sunlight to produce oxygen.

• Plants need sunlight to grow roots.

What gas do plants take in from the air during photosynthesis?

• hydrogen

• oxygen

• carbon dioxide

• nitrogen

What do plants produce as a result of photosynthesis?

• Nitrogen and glucose

• Glucose and oxygen

• Oxygen and nitrogen

• Carbon dioxide and water

How does sunlight help plants grow?

• Sunlight helps plants grow by increasing soil moisture.

• Sunlight provides nutrients directly to the roots.

• Sunlight helps plants grow by providing the energy needed for photosynthesis.

• Sunlight cools the soil, preventing plant stress.