Respiration - unit 4 biology AQA A-level

quiz about the chemical process of respiration, suitable for any a-level board but made for AQA biology unit 4 at A2 level :)

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  • Created by: Mirte
  • Created on: 05-06-14 12:41

1. The reaction that happens in the Link reaction is....

  • Pyruvate + coenzyme A + reduced NAD -> CO2 + acetyl coenzyme A + NAD
  • Pyruvate + coenzyme A + NAD -> CO2 + Acetyl coenzyme A + reduced NAD
  • Pyruvate + acetyl coenzyme A + NAD -> CO2 + coenzyme A + reduced NAD
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2. Where does the link reaction & krebs cycle take place?

  • in the mitchrondial matrix
  • in the mitochrondial cristae
  • in the cytoplasm

3. At the end of the ETC, the protons are finally accepted by oxygen to produce water. This makes oxygen the...

  • Terminal electron rejector
  • terminal electron acceptor
  • Terminal proton acceptor
  • Terminal neutron acceptor

4. At the start of glycolysis, glucose is activated by ...................

  • phosphorylation (bonded to 2 phosphate molecules)
  • Oxidation (gain of oxygen)
  • phosphorylation (bonded to 1 phosphate molecule)
  • Reduction (gain of Hydrogen atoms)

5. Which of these processes happens in all living cells?

  • the link reaction
  • phtosynthesis
  • glycolysis
  • the krebs cycle
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