Thyroid hormone may increase cellular ATP production by binding to
A) the cytoplasm.
B) the outer surface of the plasma membrane.
C) the inner surface of the plasma membrane.
D) the mitochondria.
E) the vesicles.
D
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High-frequency sounds activate neurons within the cochlea that are
A. near the oval window at the base of the cochlea. B. far from the oval window at the apex of the cochlea. C. along the entire length of the cochlea.
Which statement about gap junctions is incorrect?
a. They consist of protein. b. They are anchored to plaques on the inside surface of the plasma membrane. c. They allow materials to pass from one cell into an adjacent cell. d. They play a role in transmitting electrical activity through the heart. e. They consist of connexons.
____________________ glands secrete through ducts in the skin
Fill in the blank(s) with correct word
What is the early stage of embryonic development during which rapid mitotic cell divisions occur as the zygote travels down the uterine (fallopian) tube?
A) the acrosomal reaction B) cleavage C) fertilization D) implantation