Year 7 Science · Unit 1 · Lesson 08

Animal Cell Structure

Challenge Worksheet

Name

Date

Class

Learning Goals

Identify and correct scientific errors in a student response about cell structure.
Explain why common misconceptions about animal and plant cells arise.
Evaluate claims about cell structure using precise scientific reasoning.

Go Deeper

Find the mistake

A student wrote this answer

"Animal cells are basically the same as plant cells except they don't have chloroplasts. They have a cell wall instead of a cell membrane to protect the cell, and both types have a large vacuole for water storage. Animal cells are more complex because they have more organelles."

1. Identify the two mistakes in the student's answer. State each error clearly.

Challenge 2 marks

2. Write a corrected version of the flawed sentences. Make sure every scientific claim in your rewrite is accurate.

Challenge 2 marks

3. Explain why these kinds of mistakes are easy to make. Why might a student confuse what animal cells have and don't have?

Challenge 2 marks

Show What You Know

1. A science article claims: "Animal cells are less advanced than plant cells because they are missing key structures like the cell wall and chloroplasts." Do you agree with this claim? Justify your answer using the idea that structure fits function.

Challenge 3 marks

2. Bacteria are prokaryotes — they have no nucleus or membrane-bound organelles. An animal cell is a eukaryote. Using this information, explain one key way eukaryote cells are different from prokaryote cells, and suggest why this difference might matter for what the cell can do.

Challenge 3 marks

Wrap Up

In one sentence, what was the main idea of this lesson?