Photosynthesis

The energy that plants need for photosynthesis comes from

• water.

• sunlight.

• minerals.

• oxygen.

The main product of the photosynthesis reaction is

• fat

• protein

• DNA

• glucose sugar

Which gas is produced by photosynthesis?

• nitrogen

• oxygen

• argon

• hydrogen

What 4 things do plants need for photosynthesis to occur?

• sugar, water, oxygen, proteins

• water, chlorophyll, carbon dioxide, sunlight

• water, oxygen, carbon dioxide, sunlight

• sugar, carbon dioxide, chlorophyll, sunlight

The products of photosynthesis are

• water and carbon dioxide.

• glucose sugar and carbon dioxide.

• glucose sugar and oxygen.

• water and oxygen.

Which substance needed for photosynthesis is absorbed from the soil?

• sunlight

• carbon dioxide

• water

• oxygen

Jeremy has two plants. He waters both equally. He puts one plant outside. He puts the other plant in a closet.

Which is true about the plants?

• Plants only need soil to grow.

• The plant in the closet will die.

• It does not matter where he puts the plants.

• Plants only need water to grow.

What is the main purpose of photosynthesis?

• to convert oxygen gas to carbon dioxide gas

• to allow the plant to dispose of excess water

• to produce the food the plant needs to grow

• to absorb sunlight to stop the plant from freezing

Photosynthesis is the process that

• all green plants use to break down food.

• all green plants use to produce food.

• all green plants and all animals use to produce food.

• all green plants and all animals use to break down food.

Which of the following is released by a plant following photosynthesis?

• nitrogen

• water

• carbon dioxide

• oxygen