Edexcel SNAB Unit 4 Quiz

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1. Which part of the skin that forms a physical barrier against infection by pathogenic bacteria?

  • Sebaceous gland
  • Epidermis
  • Malpighian layer
  • Erector pili
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2. What is the term used to describe the type of chemical reaction involved in the digestion of cellulose by enzymes?

  • haemolysis
  • hydrolysis
  • autolysis
  • photolysis

3. The products of the light-dependent reactions that are used in the light-independent reactions are reduced NADP and...

  • RuBP
  • GALP
  • ATP
  • DNA

4. The name of the reaction ADP + inorganic phosphate -> ATP is...

  • hydrolysis
  • phosphorylation
  • carbon fixation
  • photolysis

5. Genetic material in bacteria is

  • single stranded RNA
  • single stranded DNA
  • double stranded DNA
  • double stranded RNA


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