Animal Cell Structures and Their Functions › Revision notes
Animal Cell Structures and Their Functions — Revision notes
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Quick recap
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Brain dump
Before you look at anything else, write down everything you can remember about this lesson: key words, facts, examples. Spelling doesn't matter. Then see which of the 10 key terms you remembered.
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Key terms
- Cell membrane
- Surrounds the cell and controls what substances enter and leave it
- Cytoplasm
- The jelly-like substance inside a cell where chemical reactions take place
- Nucleus
- Contains DNA, which stores the information that controls the cell's activities
- Mitochondria
- Use food and oxygen as fuel to release energy for the cell through respiration
- Respiration
- The process that releases energy from food and oxygen
- Model
- A simpler representation of something complex, used to explain difficult ideas
- 2D model
- A flat, two-dimensional representation, such as a textbook diagram
- 3D model
- A three-dimensional representation showing length, width and depth
- Evaluation
- Identifying the strengths and weaknesses of a model to see how it could be improved
- DNA
- The genetic information that gives instructions for a cell's activities
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What this lesson covers
How well do you know each one? Be honest: red means go back over it.
- Name the four main structures of an animal cell and describe what each one does
- Explain why cells are three-dimensional even though diagrams are flat
- Explain what a scientific model is and why cell diagrams are models
- Describe how a red blood cell is adapted to its job
- Describe how a sperm cell is adapted to its job
- Explain why some cells contain far more mitochondria than others
Test yourself
Cover the answer, say it out loud, then check the full quiz on the lesson page.
- Which of these best describes the shape of real animal cells?
- Roughly how many animal cells could fit across the width of a single full stop?
- Why are muscle cells packed with extra mitochondria?
Topic quiz
13 questions on this topic only — not mixed with anything else, one at a time.
Question 1 of 13
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Spelling challenge
Read the definition, then type the correct spelling of the term. Uses the same terms as above.
Score: 0/0