Which of the following is not involved in the "taste" of food?
A. temperature
B. texture
C. color
D. chemical composition
C. color
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How might a change of one amino acid at a site, distant from the active site of an enzyme, alter an enzyme's substrate specificity?
A) by changing the enzyme's stability B) by changing the enzyme's location in the cell C) by changing the shape of an enzyme D) by changing the enzyme's pH optimum E) An amino acid change away from the active site cannot alter the enzyme's substrate specificity.
Which of the following is found in many tetrapods but not in fish?
A) extensive parental care B) asexual reproduction C) internal fertilization D) viviparity E) production of amniotic eggs
This portion of the graph shows the shows the free energy of the products
a. A b. B c. C d. W + X e. Y + Z
A rise in sodium levels and extracellular
volume leads to a rise in blood pressure. As a result, a. renin levels rise, but aldosterone levels fall. b. renin levels fall, but angiotensin levels rise. c. renin and aldosterone levels all rise. d. renin and aldosterone levels all drop. e. none of these occur