You are the CEO of a drug company where you've asked five teams of scientists to generate new drugs to decrease blood pressure. You can only send four of the drugs to market. Which of these drugs is least likely to decrease blood pressure and can be eliminated from potential development?
A. A drug that interferes with aldosterone synthesis
B. A drug that is an agonist of atrial natriuretic factor
C. A drug that decreases sympathetic stimulation of renal arterioles
D. A drug that decreases liver production of angiotensinogen
E. A drug that enhances the activity of angiotensin-converting enzyme
Answer: E
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A. Much of the genome does not encode proteins. B. The genome consists of entirely protein-encoding genes. C. An amino acid encodes a gene. D. DNA has five types of nucleotide bases.
If one says that the clearance value of glucose is zero, what does this mean?
A) The glucose molecule is too large to be filtered out of the blood. B) Most of the glucose is filtered out of the blood and is not reabsorbed in the convoluted tubules. C) Normally all the glucose is reabsorbed. D) The clearance value of glucose is relatively high in a healthy adult.
What kind of bond is formed when two atoms share electrons?
a. ionic b. covalent c. hydrogen d. isotopic
A person who has symptoms of paleness and chronic fatigue is suspected of having anemia. To investigate this suspicion further, it would be most helpful to measure ________
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