Why do individuals with PKU need the nonessential amino acid tyrosine in their diets?
What will be an ideal response?
Answers will vary.
Several nonessential amino acids may be classified as "conditionally essential" amino acids during infancy, disease, or trauma. For example, a person with the genetic disease phenylketonuria (PKU) has a limited ability to metabolize the essential amino acid phenylalanine due to a deficiency of the enzyme phenylalanine hydroxylase. This enzyme is needed to convert phenylalanine to the nonessential amino acid tyrosine. As a result, individuals with PKU cannot produce sufficient tyrosine, thereby making tyrosine a "conditionally" essential amino acid because it must be obtained from the diet.
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It is not unusual for individuals to experience episodes of _______________ in response to an increase in cardiac workload.
Fill in the blank(s) with the appropriate word(s).
The thiamin deficiency disease is known as ____
a. scurvy b. pellagra c. beriberi d. thiaminosis e. osteomalacia
A client who is 50 lb overweight and has high blood pressure is discouraged because she has only lost 10 lb of body fat. What effect would a 10-pound loss of body fat likely have on her blood pressure?
a. Raise blood pressure b. Lower blood pressure c. No effect because a 10 lb weight loss is not enough for a person who is 50 lb overweight
____________________ is found only in foods derived from the flesh of animals
: Fill in the blank with correct word