91.Which of the following groups are precursors of urea synthesis?

a.all amino acids

b.animal proteins only

c.essential amino acids only

d.nonessential amino acids only

92.Which of the following is the process whereby an amino group is combined with a keto acid to form an amino acid?

a.deamination

b.ureagenesis

c.transamination

d.ammoniogenesis

93.In the metabolism of amino acids for energy, what is the fate of the amino group?

a.excreted as urea

b.burned for energy

c.stored in the liver

d.converted to glucose

94.The body’s need for water increases on a diet high in which of the following nutrients?

a.protein

b.carbohydrate

c.saturated fat

d.unsaturated fat

95.A prominent result of transamination reactions is the synthesis of which of the following groups of amino acids?

a.essential amino acids

b.nonessential amino acids

c.conditionally essential amino acids

d.both nonessential and essential amino acids

96.Your father has a high blood ammonia concentration. Which organ is most likely functioning poorly?

a.liver

b.spleen

c.kidney

d.intestine

97.Your mother has high blood urea content. Which organ is most likely functioning poorly?

a.liver

b.spleen

c.kidney

d.intestine

98.What is the most likely reason for a person to have abnormally high blood ammonia levels?

a.liver dysfunction

b.kidney dysfunction

c.protein intake twice the RDA

d.kwashiorkor

99.Jason was advised to consume a very low protein diet due to total kidney failure. If he ‘cheats’ by eating a large steak, where would his post-meal increase in urea concentration be most pronounced?

a.urine

b.blood

c.stools

d.sweat

100.What is the most likely reason for having an abnormally high blood urea level?

a.liver dysfunction

b.kidney dysfunction

c.protein intake twice the RDA

d.kwashiorkor