The Chemistry of Life

Water is polar and oil is nonpolar.

• True
• False

What is the main function of nucleic acids?

• To function in insulation.
• To store and transmit hereditary information.
• To provide energy

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What are the monomers of carbohydrates?

• Amino acids
• Fatty acids
• Nucleotides
• Monosaccharides (simple sugars)

What is the strongest base listed in this figure?

• Hydrochloric acid
• Pure water
• Sodium hydroxide
• Sea water

Enzymes are lipids.

• True
• False

Most enzymes — 

• Speed up the chemical reaction
  
• Have no effect on the rate of the chemical reaction 
• Keep the rate of the chemical reaction the same
  
• Slow the rate of the chemical reaction 

Enzymes _____ the activation energy of a reaction by binding a substrate and holding it in a way that lowers the activation energy.

• Lower
• Raise
• Maintain

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Most enzymes in with the suffix --

• -yme
• -gen
• -nic
• -ase

All carbohydrates are —

• composed of carbon, hydrogen and oxygen atoms
• are made of amino acids
• composed of carbon, hydrogen, oxygen and nitrogen atoms
• composed of carbon, hydrogen, oxygen, nitrogen and phosphorus atoms
   D are made of fatty acids 

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Which structure in the figure would most likely be used to form muscles and connective tissue? 

• 4
• 1
• 2
• 3

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