Statements 63–67 ask about membrane permeability. For each
one, select the best choice from the following five processes
below.
a. simple diffusion
b. facilitated diffusion
c. osmosis
d. active transport
e. endocytosis
E 63. This process is used by white blood cells to ingest
bacteria.
E 64. This process specifically moves water molecules
across a differentially permeable membrane.
E 65. This process explains the movement of any kind of
molecule from areas of higher concentration to areas
of lower concentration.
E 66. The method by which glucose crosses the plasma
membrane.
M 67. This process explains the movement of molecules
against a concentration gradient.
Answers: 63. e, 64. c, 65. a, 66. b, 67. d
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