AS OCR Biology - Unit 1 (Cells, Exchange and Transport)

Test on Biology Unit 1 (Cells). Based on all the difficult questions from the past papers (2009-2011)

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  • Created by: Vanita
  • Created on: 02-04-12 16:49

1. Why can organelles sometimes vary in shape under a microscope slide?

  • Organelles can never vary in shape
  • They have been cut in different planes
  • They're weird
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Other questions in this quiz

2. Polar substances can enter a cell through channel proteins

  • True
  • False

3. Stem cells are...

  • incapable of division
  • not differentiated
  • specialised cells

4. During inspiration, the pressure inside the thorax lower to below atmospheric pressure, which creates a pressure gradient

  • True
  • False

5. A source is...

  • where lipids are unloaded from phloems
  • where water enters the xylem
  • where sugars are loaded into phloem
  • where lipids are loaded into phloem
  • where sugars are unloaded from phloem
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Comments

Sky

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This is a great way to see your basic knowledge, especially for retakes! Thanks for posting this :)

AtomicBecca

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80% :P I know i need to practise resolution and size of cells, thanks!

Ria Hill

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Thanks :) Really helpful to see what my weaker areas are

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