Yr8 B2.1 Photosynthesis

What is a producer?

• An organism that eats other organisms

• An organism that makes its own food using light

• An organism that decomposes dead matter

Which organisms are classified as producers?

• Fungi and moss

• Algae and animals

• Plants and algae

What is the word equation for photosynthesis?

• glucose + oxygen → carbon dioxide + water

• carbon dioxide + water → glucose + oxygen

• oxygen + water → glucose + carbon dioxide

What is the green pigment in chloroplasts that absorbs light energy?

• Hemoglobin

• Chlorophyll

• Lignin

In which part of the plant cell does photosynthesis mainly occur?

• Mitochondria

• Nucleus

• Chloroplasts

How does water enter the plant?

• Through the leaves

• Through the roots via xylem tubes

• Through stomata

How do gases like carbon dioxide get into the plant?

• Through holes in the stem

• Through stomata on the underside of leaves

• Through the roots

What gas is released as a waste product during photosynthesis?

• Carbon dioxide

• Oxygen

• Nitrogen

Why is photosynthesis important for life?

• It produces food and oxygen

• It absorbs minerals from the soil

• It helps plants breathe underwater

What type of energy is required for photosynthesis to happen?

• Kinetic energy

• Heat energy

• Light energy