Photosynthesis: The Plant's Food Factory

Biology

Learn about photosynthesis, the process plants use to make food from sunlight, water, and carbon dioxide. Discover the role of chlorophyll, stomata, and how plants help us breathe.

Photosynthesis Plants Science

10 Questions Easy Ages 6+ Nov 25, 2025

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About this Study Set

This study set covers Biology through 10 practice questions. Learn about photosynthesis, the process plants use to make food from sunlight, water, and carbon dioxide. Discover the role of chlorophyll, stomata, and how plants help us breathe. 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: The Plant's Food Factory study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the main source of energy for photosynthesis?

A Sunlight
B Water
C Carbon Dioxide
D Chlorophyll

2 What gas do plants take in from the air?

A Oxygen
B Carbon Dioxide
C Nitrogen
D Hydrogen

3 What gas do plants release into the atmosphere?

A Carbon Dioxide
B Water Vapor
C Oxygen
D Nitrogen

4 What are the tiny openings on leaves called that allow plants to breathe?

A Chloroplasts
B Stomata
C Roots
D Veins

5 What is the green pigment in plants that helps them absorb sunlight?

A Stomata
B Chlorophyll
C Carbon Dioxide
D Water

6 What are plants often called because they take in carbon dioxide and release oxygen?

A Food Factories
B Water Filters
C Lungs of the World
D Sunbathers

7 What are the three main ingredients plants use to make food during photosynthesis?

A Sunlight, Water, and Oxygen
B Sunlight, Carbon Dioxide, and Soil
C Sunlight, Water, and Carbon Dioxide
D Oxygen, Water, and Nutrients

8 Where does photosynthesis primarily take place in plants?

A Roots
B Stem
C Leaves
D Flowers

9 What is produced during photosynthesis besides oxygen?

A Carbon Dioxide
B Sugar (food)
C Water
D Nitrogen

10 What part of the plant absorbs water and nutrients?

A Leaves
B Flowers
C Roots
D Stem

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