A2 Biology Unit 4 ( EDEXCEL ) 39 Questions

I have created a quiz on Unit 4 of Edexcel Biology (A2). Please excuse any spelling mistakes, I've done my best to spell everything write, but feel free to message me if you spot one. I have checked and checked the questions and answer but there are a lot there so if you do find one that you think is incorrect please let me know immediatly so I can change it. I hope it helps, even if its just a little bit. 

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  • Created by: Holly
  • Created on: 06-12-12 12:21

1. Infection of mast cells cause a release of

  • Histamine
  • Antibodies
  • Antihistamine
  • Antigens
1 of 20

Other questions in this quiz

2. Which molecule provides a source of hydrogen for photosynthesis

  • ATP
  • Water
  • Glucose
  • NADP

3. Name the bacteria that causes TB

  • Microbacterium Tuberculosis
  • Micrabacterium Tuberculosis
  • Mycobacterium Tuberculosis
  • Mycrobacterium Tuberculosis

4. What determines the distance traveled by the DNA fragments in Gel Electrophoresis

  • The DNA bases
  • The size of the fragments
  • The weight of the fragments
  • The type of gel used

5. Transcription occurs in the

  • Ribosome
  • Nucleus
  • Cytoplasm
  • Rough ER



Will not load results, other quiz's do but not this one. Good questions, though


I was waiting for my results for around 3 minutes then I decided to leave it then just saw that comment. Thanks


yea same ^ annoying

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