Biology Year 12 - Module 7 - Lesson 10

The Innate Immune System

Use this worksheet after reading the lesson to practise the key ideas and prove you can meet the success criteria.

Name

Date

Class

1. Key Ideas

Think of the innate immune system as a security guard who doesn't recognise faces but responds to anyone who looks suspicious — fast, broad, and ready within minutes. The adaptive immune system is the detective who studies each criminal carefully. This lesson is about the security guard.

The components of the innate immune system
Why the innate response is fast but non-specific

2. Success Criteria

By the end, you should be able to:

The components of the innate immune system
How phagocytosis works — step by step
The role of natural killer cells

3. Key Terms

The adaptive immune systemthe detective who studies each criminal carefully

This lessonabout the security guard

the areared and starting to swell — before you've even thought about cleaning it

molecules do you thinkinvolved, and in what order do they act? Be as specific as you can

Why the innate responsefast but non-specific

Bacterialiving cells; viruses are non-living particles that require host cells to reproduce

4. Activity: Build the Lesson Map

Use the lesson to complete the table. Keep answers brief but specific.

Prompt	Your answer
Main concept
Important example
Common mistake to avoid
How this links to the next lesson

5. Short Answer Questions

1. Explain this lesson goal in your own words: "The components of the innate immune system". Use one specific example from the lesson.

Band 32 marks

2. Apply this idea to a new example: "How phagocytosis works — step by step". Show your reasoning clearly.

Band 43 marks

3. Analyse why this idea matters for understanding The Innate Immune System: "The role of natural killer cells".

Band 54 marks

6. Extend: Apply the Idea

Band 5/65 marks

A student gives a memorised answer about The Innate Immune System but does not use evidence or reasoning.

Improve the answer by writing a stronger response that uses accurate terminology, a relevant example and a clear explanation.

7. Multiple Choice

1. What is the best first step when answering a question about The Innate Immune System?

A. Identify the key concept being tested

B. Write every fact from memory

C. Ignore the command word

D. Skip examples and evidence

2. Which answer would show stronger understanding of The Innate Immune System?

A. An answer with accurate terms and reasoning

B. A copied definition only

C. A single-word response

D. An answer with no example

3. What should you do if a question asks you to explain?

A. Link the idea to a reason or cause

B. List unrelated facts

C. Only draw a diagram

D. Write the shortest possible answer

8. Success Criteria Proof

Finish with evidence that you can do each success criterion.

Success criterion 1

Prove that you can: The components of the innate immune system