31.  Which of the following recommendations regarding daily requirements is correct?  
A.  Fats should account for 45% of total caloric intake.
B.  Carbohydrate intake should be around 500 grams daily.
C.  Protein consumption should be 10-35% of total kilocalorie intake.
D.  Cholesterol intake should be about 300 milligrams per day.
E.  Protein consumption should be about 45% of total kilocalorie intake.

32.  A food that contains all nine essential amino acids is called a(n)  
A.  plasma protein.
B.  incomplete protein.
C.  complete protein.
D.  intracellular protein.
E.  adequate protein.

33.  An example of an incomplete protein food is  
A.  eggs.
B.  meat.
C.  milk.
D.  leafy green vegetables.
E.  cheese.

34.  Proteins that function in immunity include  
A.  enzymes.
B.  antibodies.
C.  hormones.
D.  collagens.
E.  fibrin.

35.  Functions of proteins include  
A.  providing structural strength in connective tissue.
B.  serving as a part of the cholesterol molecule.
C.  serving as the primary energy source of cells.
D.  transport of nitrogen gas in the blood.
E.  padding and insulation.

36.  Water-soluble vitamins include  
A.  vitamin A.
B.  vitamin C.
C.  vitamin D.
D.  vitamin K.
E.  vitamin E.

37.  Which of the following individuals is most likely to be in a negative nitrogen balance?  
A.  a healthy pregnant woman
B.  a 10-year-old child
C.  an adult woman with adequate protein intake
D.  an elderly homeless man
E.  a healthy adult man who exercises

38.  Fat soluble vitamins can be toxic in large doses because they  
A.  do not dissolve in water.
B.  can be stored and accumulate in body tissues.
C.  are rapidly excreted.
D.  release free radicals.
E.  are flushed out of the body.

39.  Excessive bleeding due to slowed blood clotting is a symptom of vitamin _____
deficiency.  
A.  A
B.  D
C.  E
D.  K
E.  C

40.  Vitamin E and vitamin C  
A.  both release free radicals.
B.  are needed in RBC production.
C.  are both antioxidants.
D.  are formed from provitamins.
E.  are required for blood clotting.