Grade 5 Biology Principles Worksheet
Explore fundamental biology principles for Grade 5 students, including cells, food chains, and photosynthesis.
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Grade 5 Biology Principles
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Read each question carefully and answer to the best of your ability.
1. Which of the following is the basic unit of all living things?
Organ
Tissue
Cell
System
2. What part of a plant cell uses sunlight to make food?
Nucleus
Mitochondria
Chloroplast
Cell wall
3. The process by which plants make their own food using sunlight is called .
4. Organisms that produce their own food are called .
5. In a food chain, a consumer that eats only plants is called a .
6. Look at the plant cell diagram below. Name two parts of the plant cell and their functions.

7. All living things are made of one or more cells.
True
False
8. Decomposers break down dead organisms and return nutrients to the soil.
True
False
9. Explain the role of producers, consumers, and decomposers in a food chain. You may refer to the diagram below.

Use the words below to complete the sentences.
10. During photosynthesis, plants take in from the air and from the soil.
11. Plants use as energy to convert these into food and release .