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5 Written questions

5 Matching questions

  1. ribonucleic acid(RNA)
  2. Inorganic compounds
  3. synthesis reaction
  4. Dehydration synthesis
  5. solute
  1. a the dissolved substance in a solution.
  2. b A water molecule is lost and forms a bond.
  3. c Lack carbon and tend to be small, simple molecules.
  4. d Occur when two or more atoms or molecules combine to form a larger, more complex molecule. A+B->AB
  5. e the nucleic acids that contains ribose acts in protein synthesis. Present in all living cells. Principal role is to aid as a messenger carrying instructions from DNA for controlling the synthesis of proteins.

5 Multiple choice questions

  1. Orbits or fixed regions of space around the nucleus that electrons occupy.
  2. 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.
  3. Regulates the acid base balance in the body.
  4. A water molecule is added to each bond, the bond is broken and releases simple sugars.
  5. Substances that conduct an electrical current in solutions.

5 True/False questions

  1. reactantA substance that can release hydrogen ions (H+) in detectable amounts. having a sour taste and can dissolve many metals of burn a hole in your rug. pH below 7

          

  2. IsotopesAtomic particles with a positive charge.

          

  3. Covalent BondExtremely weak bonds formed when a hydrogen atom binds to one electron hungry nitrogen or oxygen atom is attracted to another electron hungry atom and a bridge if formed between them.

          

  4. Enzyme(catalyst)a substance that takes part in and undergoes a chemical change during a reaction.

          

  5. IonsCharged particles

          

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