Biology Year 11 - Module 2 - Lesson 13

Transport Systems in Animals — Overview and Blood

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

A grasshopper and a blue whale both need to move oxygen, nutrients, and waste products around their bodies. They have evolved radically different solutions to the same problem — and understanding why illuminates one of biology's most fundamental design principles.

  • Explain why multicellular organisms need transport systems
  • Investigate transport systems in animals

2. Success Criteria

By the end, you should be able to:

  • Explain why multicellular organisms need transport systems
  • Compare open and closed circulatory systems with examples
  • Describe the four components of blood and what each transports

3. Key Terms

bathes tissues directly andnot confined to vessels
Open circulatory systemsalways inefficient and inferior to closed systems
large bodysimply too big for diffusion to cover the distances involved in any useful timeframe
distinction between transport systemswhether the transport fluid stays inside vessels at all times, or whether it leaves vessels and bathes tissues directly
Thereno blood vessels beyond the heart — haemolymph pools around organs and slowly drains back through openings called ostia
fluidnot contained in vessels

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: "Explain why multicellular organisms need transport systems". Use one specific example from the lesson.

Band 32 marks

2. Apply this idea to a new example: "Compare open and closed circulatory systems with examples". Show your reasoning clearly.

Band 43 marks

3. Analyse why this idea matters for understanding Transport Systems in Animals — Overview and Blood: "Describe the four components of blood and what each transports".

Band 54 marks

6. Extend: Apply the Idea

Band 5/65 marks

A student gives a memorised answer about Transport Systems in Animals — Overview and Blood 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 Transport Systems in Animals — Overview and Blood?

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 Transport Systems in Animals — Overview and Blood?

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: Explain why multicellular organisms need transport systems

Band 32 marks
Success criterion 2

Prove that you can: Compare open and closed circulatory systems with examples

Band 43 marks
Success criterion 3

Prove that you can: Describe the four components of blood and what each transports

Band 54 marks

One thing I still need help with: