Grade 5 Photosynthesis

What is photosynthesis?

• The process of breathing

• The process of breaking down food to produce energy

• The process of producing food from sunlight energy

What are the basic needs of a plant for photosynthesis?

• Water, sunlight, carbon dioxide and mineral salts

• Water, sunlight, and oxygen

• Water ,sugar and sunlight

Chlorophyll is a green pigment found in the __________ of plant cells.

• Chloroplasts

• Stomata

• xylem

The equation for photosynthesis is:

• a) Carbon dioxide + water → starch+ oxygen

• b) starch+ oxygen → carbon dioxide + water

• Carbon dioxide + water → starch+ nitrogen

Iodine solution turns __________ when it reacts with starch.

• dark blue

• green

• orange

What happens to a green leaf when it is tested with iodine solution?

• turns blue-black

• stay green

• turns orange

Plants are important for the environment because it ..

• enriches the air with oxygen

• Consume oxygen from the atmosphere.

• Absorbing water from the soil.

Plants are called __________ because they produce their own food.

Iam the place where photosynthesis takes place in plants.

What are the tiny pores on the surface of a leaf called?