Using two high-energy bonds, arginosuccinate synthetase joins aspartate and citrulline to produce arginosuccinate in the cytosol. This is the rate-limiting step in ____ synthesis.?
A) ?pyrimidine
B) ?purine
C) ?urea
D) ?creatine
C
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Which of the following statements about saliva is NOT true?
A. It contains a mixture of water, mucus, and enzymes. B. It moistens the mouth. C. It begins the digestion of carbohydrates. D. It prepares the organs for digestion of foods.
The outer, hard shell of bone is called
a. cortical bone. b. dolomitic bone. c. trabecular bone. d. hydroxyl bone.
Which of the following foods would you recommend to someone interested in lowering his or her blood cholesterol level?
a. wheat bread b. oatmeal c. strawberries d. pork
The male athlete most likely to manifest iron-deficiency anemia is a(n) ____
A) strength athlete engaging in high volume resistance training B) wrestler who "makes weight" by dehydrating C) "stop and go" athlete D) endurance runner