In DNA, the base represented by an A always pairs with the base represented by
a. A.
b. T
c. C
d. G
Answer: b. T
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What function do collagen and elastin have in arteries?
A. They provide elastic rebound of the arterial wall to help smooth out blood flow. B. They help to control blood flow within the body by contracting with the smooth muscles in the arterial wall. C. They line the interior to provide a smooth surface for blood flow. D. They form valves to prevent the backflow of blood. E. All of the answer options are correct.
Which of the following is NOT a fate of glucose entering the body during the absorptive state?
A. used as fuel immediately by body cells B. stored as glycogen in the liver C. stored as glycogen in muscles D. converted to triglycerides and stored in fat cells E. converted into the hard extracellular matrix of bone
Four of the five answers listed below are actions mediated by the sympathetic nervous system. Select
the exception. a. pulse increases b. blood glucose levels drop c. metabolism increases d. digestion slows down e. pupils of the eye dilate
According to Kluyver and van Niel, which of the following are TRUE of basic biochemical reactions?
A) They are shared by all living things. B) There are an unlimited number of them. C) They primarily involve the transfer of electrons and ions. D) Basic biochemical reactions shared by all living things primarily involve transfer of electrons and hydrogen ions. E) They primarily involve transfers of chemical groups.