Red blood cells, also known as __________, contain the hemoglobin that functions in rapid transport
of oxygen and, to a lesser extent, carbon dioxide.
erythrocytes
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Consider a living plant cell in a living leaf that is not wilted. The solute potential (?S) of such a cell
____ than that in the fluids surrounding the cell.
a. is typically lower b. varies widely from higher to lower c. is typically higher d. is typically about the same as e. is typically less negative
Gram stain is used to distinguish between different
a. bacteria. b. protistans. c. dinoflagellates. d. all of the above.
The control over milk "let down," labor in childbirth, and water balance are mediated by the ____
gland. a. pineal b. anterior pituitary c. posterior pituitary d. parathyroid e. thyroid
Which of the following statements about vesicular membrane fusion is false?
(a) Membrane fusion does not always immediately follow vesicle docking. (b) The hydrophilic surfaces of membranes have water molecules associated with them that must be displaced before vesicle fusion can occur. (c) The GTPhydrolysis of the Rab proteins provides the energy for membrane fusion. (d) The interactions of the v-SNAREs and the t-SNAREs pull the vesicle membrane and the target organelle membrane together so that their lipids can intermix.