AQA B3a Life Processes

A test that summarises the first half of the Biology Unit 3 AQA syllabus. Created using the CGP Revision guide and my own knowledge. Good luck with the exam everyone!!! 

THIS EXAM IS FOR TRIPLE SCIENTISTS ONLY!!!

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1. How are alveoli adapted for gas exchange?

  • Large surface area, moist, good blood supply and thin walls
  • Large surface area, dry and thick walls
  • Small surface area, moist, poor blood supply and thin walls
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2. What is the job of platelets?

  • To carry oxygen around the body
  • To clot up wounds to prevent blood loss and micro organisms getting in
  • To defend against disease

3. What do the kidneys do?

  • Remove all urea and ions and adjust water content of the blood
  • Remove all urea and adjust water and ion content of the blood
  • Remove all ions and adjust water and urea content of the blood

4. Where are the lungs located?

  • Thorax
  • Abdomen

5. Phloem transport water and Xylem transport food in a plant. True or False?

  • False. It is the other way around
  • True
  • False. These are not in plants.
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Comments

Sophie :)

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some of the answers you want are a little unclear but great otherwise!!! :)

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