The volume of air that enters (or leaves) during a single respiratory cycle is the
A) vital capacity. B) inspiratory reserve volume.
C) expiratory reserve volume. D) tidal volume.
D
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In a neuromuscular junction, the effect of acetylcholine (ACh) binding to receptors on the motor end plate lasts only briefly due to
a) rapid uptake of the ACh into the myofiber. b) endocytosis of the ACh receptor into the myofiber. c) rapid destruction of ACh in the synaptic cleft by acetylcholinesterase. d) rapid destruction of ACh in the synaptic cleft by monoamine oxidase. e) diffusion of the ACh out of the synaptic cleft.
The single gene within the Y chromosome that is responsible for sex determination is the ____________________
Fill in the blank(s) with correct word
Which organelle is a small vesicle containing oxidative enzymes?
A. Nucleolus B. Peroxisome C. Golgi apparatus D. Endoplasmic reticulum E. Flagellum
Which of the following combining forms means diaphragm?
A. pneum/o B. pulmon/o C. phren/o D. pharyng/o