What is the major difference between your cells and the cell structure of a bacterium?
A. The bacteria do not have a plasma membrane
B. The bacteria use RNA and not DNA to pass o on genetic info
C. Your cells have a nucleus and internal compartment and the bacteria cells
D. Your cells metabolize and the bacteria cell doesn’t
Ans: C. Your cells have a nucleus and internal compartment and the bacteria cells
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You have discovered an enzyme that can catalyze two different chemical reactions. Which of the following is most likely to be correct?
A) The enzyme contains ?-helices and ?-pleated sheets. B) The enzyme is subject to competitive inhibition and allosteric regulation. C) Two types of allosteric regulation occur: The binding of one molecule activates the enzyme, while the binding of a different molecule inhibits it. D) Either the enzyme has two distinct active sites or the reactants involved in the two reactions are very similar in size and shape.
The protoderm of the apical meristem generates what cell types?
A. epidermal cells, trichomes, and fibers B. trichomes, fibers, and guard cells C. fibers, guard cells, epidermal cells, and vessels D. cork cells, trichomes, epidermal cells, and guard cells E. trichomes, guard cells, and epidermal cells
Why is high blood pressure damaging to the kidneys? What will be an ideal response?
Respiratory acidosis results when __________ are produced more rapidly than they are removed
a. oxygen molecules b. carbon dioxide molecules c. chloride ions d. hydrogen ions e. carbonic anhydrase molecule