This study set covers Biology through 10 practice questions. Learn about photosynthesis, how plants make food using sunlight, water, and carbon dioxide, and their role in producing oxygen. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 10 questions from the Photosynthesis Explained study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is photosynthesis?

A Using light to put things together
B The process of plants breathing
C How plants absorb nutrients
D A type of sunbath

2 What three things do plants need for photosynthesis?

A Sunlight, oxygen, and sugar
B Water, oxygen, and carbon dioxide
C Sunlight, water, and carbon dioxide
D Sugar, water and nutrients

3 What do plants breathe in?

A Oxygen
B Nitrogen
C Carbon Dioxide
D Hydrogen

4 What do plants breathe out?

A Carbon Dioxide
B Nitrogen
C Water Vapor
D Oxygen

5 What are the tiny openings in leaves called?

A Chloroplasts
B Stomata
C Roots
D Pigments

6 What are the tiny pigments in leaves called?

A Stomata
B Chlorophyll
C Roots
D Chloroplasts

7 What color is chlorophyll?

A Blue
B Red
C Green
D Yellow

8 What is the food that plants make?

A Water
B Carbon Dioxide
C Sugar
D Oxygen

9 Plants are known as the lungs of the world because they do what?

A Eat a lot
B Take in oxygen and give out carbon dioxide
C Take in carbon dioxide and give out oxygen
D Absorb sunlight

10 What part of the plant absorbs water and nutrients?

A Leaves
B Flowers
C Roots
D Stem

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