Unit 3: Macromolecules Review

A simple sugar is known as

• Disaccharide

• Polysaccharide

• Monosaccharide

• Multisaccharide

What do enzymes do?

• Slow down chemical reactions in our body

• Speed up chemical reactions in our body

• Keep chemical reactions moving at the same rate

  
  

• All of the above.

  
  

What do lipids do for your body?

• Store energy and contains the most energy in our body

  
  

• Gives you energy

  
  

• Makes genetic Information

  
  

• Give us basic structure and function

  
  

What does adenosine triphosphate (ATP) do?

• Forms the building blocks of protein

  
  

• Provides energy to cells and converts energy to carbon

  
  

• Facilitates enzymatic reactions

  
  

• Protects nerves and contributes to the structure of cells

  
  

An enzyme's ability to do work may be damaged if temperature and pH get changed. True or false?

• True

• False

Carbon is special because

• it has 4 electrons in the outermost energy level

  
  

• it bonds with carbon and other atoms to form many different structures.

  
  

• it can form single, double, or triple bonds with other atoms

  
  

• all of these are true

  
  

A lock and key describes

• how enzymes and substrates combine.

  
  

• a metabolic model.

  
  

• how phosphates and nucleic acids join.

  
  

• your ability exit a building.

  
  

Carbohydrates are made up of

• Carbon

• Hydrogen

• Oxygen

• All of the above

  
  

Water forms a somewhat rigid surface known as surface tension. Define surface tension.

• Adhesion of water molecules at the surface

  
  

• Cohesion of water molecules at the surface

  
  

• Changing density of water when it forms a solid

  
  

• High amount of heat required to break/form hydrogen bonds

  
  

Polymers are simple carbon molecules that link together to form long chains. True or false?

• True

• False

Answer explanation

Monomers make up long chains to form polymers.