CPN CPN Nutrient Metabolism & Physiology

Question 1

Which amino acid is considered essential for cats because they cannot synthesize adequate amounts from cysteine and methionine?

Accepted Answer

Taurine

Answer

Taurine is an essential amino acid for cats because they lack sufficient enzymatic activity to synthesize it endogenously, making dietary taurine required for cardiac and retinal health.

Question 2

A protein with a biological value (BV) of 100 indicates what about its nutritional quality?

Accepted Answer

All absorbed protein is retained and utilized by the body

Answer

A biological value of 100 means that 100% of the absorbed protein is retained for body use, representing the theoretical maximum efficiency of protein utilization.

Question 3

Which metabolic process converts excess amino acids into glucose during periods of carbohydrate deficiency?

Accepted Answer

Gluconeogenesis

Answer

Gluconeogenesis is the hepatic process that synthesizes new glucose from non-carbohydrate precursors such as amino acids, lactate, and glycerol.

Question 4

Dogs can synthesize limited amounts of niacin from which essential amino acid, though dietary niacin is still required?

Accepted Answer

Tryptophan

Answer

Dogs possess some capacity to convert tryptophan to niacin, but the conversion efficiency is too low to meet full requirements without dietary supplementation.

Question 5

Which nitrogen balance state indicates adequate protein intake for a healthy adult pet at maintenance?

Accepted Answer

Zero (equilibrium) nitrogen balance

Answer

Zero nitrogen balance, where nitrogen intake equals nitrogen excretion, indicates the animal is neither gaining nor losing body protein, which is appropriate for healthy adult maintenance.

CPN - Clinical Pet Nutritionist Practice Test

CPN - Clinical Pet Nutritionist Practice Test

CPN CPN Nutrient Metabolism & Physiology