Biology Year 11 - Module 2 - Lesson 14

The Cardiovascular System — Structure and Function

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

Right now, a red blood cell is leaving your heart with a full load of oxygen. Follow it through every chamber, every valve, and every vessel — watch it deliver that oxygen to your muscles and return, changed, to begin the circuit again.

  • Describe the four chambers of the heart and their roles
  • Compare structures and function of transport systems in animals

2. Success Criteria

By the end, you should be able to:

  • Describe the four chambers of the heart and their roles
  • Trace pulmonary and systemic circulation as one complete circuit
  • Compare arteries, veins, and capillaries — structure and function

3. Key Terms

red blood cellleaving your heart with a full load of oxygen
and whatthe difference between oxygenated and deoxygenated blood?
Explain why double circulationmore efficient than single circulation
Blood in veinsalways deoxygenated and blood in arteries is always oxygenated
The septumthe key — complete separation drives double circulation efficiency
The mammalian hearta muscular organ divided into four chambers by a wall called the

4. Activity: Build the Lesson Map

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

PromptYour 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: "Describe the four chambers of the heart and their roles". Use one specific example from the lesson.

Band 32 marks

2. Apply this idea to a new example: "Trace pulmonary and systemic circulation as one complete circuit". Show your reasoning clearly.

Band 43 marks

3. Analyse why this idea matters for understanding The Cardiovascular System — Structure and Function: "Compare arteries, veins, and capillaries — structure and function".

Band 54 marks

6. Extend: Apply the Idea

Band 5/65 marks

A student gives a memorised answer about The Cardiovascular System — Structure and Function 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 Cardiovascular System — Structure and Function?

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 Cardiovascular System — Structure and Function?

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: Describe the four chambers of the heart and their roles

Band 32 marks
Success criterion 2

Prove that you can: Trace pulmonary and systemic circulation as one complete circuit

Band 43 marks
Success criterion 3

Prove that you can: Compare arteries, veins, and capillaries — structure and function

Band 54 marks

One thing I still need help with: