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5 Written questions

5 Matching questions

  1. Atomic Mass
  2. Dehydration synthesis
  3. pH
  4. Enzyme(catalyst)
  5. Lipids
  1. a functional proteins that act as biological catalysts. A catalyst is a substance that increases the rate of a chemical reaction without becoming part of the product or being changed itself.
  2. b The sum of the masses of all the protons and neutrons contained in an atoms nucleus.
  3. c A water molecule is lost and forms a bond.
  4. d A large group of organic compounds - contain carbon, hydrogen and oxygen with more carbon and hydrogens than oxygens.
  5. e Measures the relative concentration of hydrogen and hydroxyl ions in various solutions.

5 Multiple choice questions

  1. Determine what type of or
  2. The type of exchange reaction in which an acid and a base interact.
  3. Involve both synthesis and decomposition reactions. AB+C->AC+B and AB+CD->AD+CB
  4. Unique substances that cannot be broken down into simpler substances by ordinary chemical methods.
  5. Process of spontaneous atomic decay.

5 True/False questions

  1. Adenosine triphospate (ATP)Provides a form of chemical energy that all body cells can use. WIthout this, molecules cannot be made or broken down, cells cannot maintain boundaries, and all life processes stop.


  2. MatterAnything that has mass and takes up space.


  3. Deoxyribonucleic acidnucleic acid found in all living cells:carries the organism's hereditary information.


  4. solutea homogenous mixture of two or more components.


  5. BasesHydroxides ionize and dissociate in water releasing hydroxyl ions (OH-)