Ribose is the
A. sugar found in RNA and ATP.
B. nondigestible plant polysaccharide.
C. storage carbohydrate in animals.
D. storage carbohydrate in plants.
E. major nutrient for most body cells.
Answer: A
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Unlike other regions of the brain, portions of the hypothalamus are not guarded by the blood–brain barrier, so the hypothalamus can easily monitor chemical changes in the blood
a. True b. False Indicate whether the statement is true or false
What muscle forms the lips?
A. Orbicularis oculi muscle B. Buccinator muscle C. Orbicularis oris muscle D. Labial frenulum muscle
Which is NOT true about the countercurrent multiplier system of the kidney?
A. It creates a hyperosmolar medullary interstitium that allows the kidneys to form hypertonic urine. B. The descending loop of Henle is permeable to water. C. There is active transport of sodium and chloride out of the ascending limb of the loop of Henle. D. The ascending loop of Henle is not permeable to water. E. The fraction of filtered NaCl reabsorbed from the ascending limb equals the fraction of filtered water reabsorbed from the descending limb.
Autologous chondrocyte implantation involves
A. injection of cartilage cells that had been cultured. B. replacement of articular cartilage with polyethylene. C. joint replacement with metal and plastic. D. use of cadaver ligaments to repair a joint. E. fusion of bones in a joint.