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5 Written questions

5 Matching questions

  1. acid
  2. unsaturated fats
  3. buffers
  4. hypotonic
  5. metabolism
  1. a Type of fat that contains double bonds
  2. b solution When water moves into the cell (from high to low)
  3. c What compounds have a pH of below 7?
  4. d All the chemical reactions through which an organism builds up or breaks down materials.
  5. e Weak acids or bases that can react with strong acids and bases to prevent sharp, sudden changes in pH.

5 Multiple choice questions

  1. Name given to simple sugars
  2. Process of taking material into the cell by means of infoldings
  3. sugar, phosphate, base
  4. An attraction between molecules of different substances.
  5. The part of an experiment that is "unchanged".

5 True/False questions

  1. dependent variableThe factor(s) that change in an experiment


  2. two things that affect the activity of enzymesreproduce, use energy, made of cells, has DNA, grows and develops, responds to stimulus


  3. cohesionAn attraction between molecules of the same


  4. facilitated diffusionType of diffusion that needs a special protein channel


  5. independent variableThe variable that is deliberately changed in a controlled experiment.