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5 Written questions

5 Matching questions

  1. hydrogen bond
  2. amino acid
  3. lipid
  4. proton
  5. fatty acid
  1. a weak bond formed by the attraction of positively charged hydrogen atoms to negatively charged atoms
  2. b basic building blocks of protein molecules
  3. c macromolecules used for energy storage, cell membranes, and waterproofing
  4. d positively charged particle of an atom
  5. e Type of lipid, A long, straight hydrocarbon chain with a carboxyl group attached at one end

5 Multiple choice questions

  1. steroid molecule present in the plasma membranes of animal cells
  2. two or more atoms held together by covalent bonds
  3. neutral particle of an atom
  4. carbon-based molecule
  5. covalent bond formed between amino acids

5 True/False questions

  1. hydrolysisbreaks down molecules by adding water to them


  2. prokaryoticdescribes a cell that does not have a nucleus or anyother membrane-covered organelles; also called bacteria.


  3. polar moleculelarge molecules


  4. isotopepositively charged particle of an atom


  5. acidhas a low pH, donates H(+) ions