Which of the following help increase the selective permeability of a phospholipid bilayer membrane?
a. transport proteins
b. channel proteins
c. passive carrier proteins
d. Transport proteins, channel proteins, and passive carrier proteins all help increase the selective permeability of a phospholipid bilayer membrane.
Ans: d. Transport proteins, channel proteins, and passive carrier proteins all help increase the selective permeability of a phospholipid bilayer membrane.
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A) an allergy B) an immunodeficiency C) an autoimmune disease D) an antigenic variation E) a cancer
Ribbon worms use their ____ for capturing prey
a. epitoke b. proboscis c. pharynx d. lophophore e. choanocytes
Brown algae that live along the rocky shores of the north temperate zones are able to withstand pounding tides and drying because of their holdfasts and the water-retaining material in their cell walls.
Answer the following statement true (T) or false (F)
Which type of cells is the HIV virus able to infect?
A. B lymphocytes and nervous tissue B. red blood cells and liver cells C. macrophages and T lymphocytes D. brain cells and glands E. intestine and T lymphocytes