Which of the following enzyme deficiencies in the urea cycle is considered to be the most severe and resistant to treatment in regard to urea cycle disorders?

a. Arginosuccinate sythetase
b. Arginase
c. Ornithine transcarbamylase
d. Arginosuccinate lyase


c

Nutritional Science

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Active forms of which of these nutrients will support the immune response at the genetic level by switching genes on or off?

a. folate b. Vit D c. retinol d. B-6 e. beta-carotene

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Postgastrectomy diets limit the amounts of _____

a. fat b. sugar c. protein d. complex carbohydrate e. water

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Vitamin A toxicity is MOST LIKELY to occur from ________.

A. consuming high-dosage vitamin A supplements B. drinking too much vitamin A fortified milk C. eating liver more than once per week D. consuming too many dark green and deep orange vegetables

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A ____________________ contraction occurs when the muscle lengthens

a. concentric b. eccentric c. isokinetic

Nutritional Science