A molecule with polar and nonpolar parts that only partially dissolves in water is described as ________.
Fill in the blank(s) with the appropriate word(s).
amphipathic
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Metabolic rate is a measurement of the
A. total number of calories consumed per hour. B. amount of oxygen consumed per kilogram of body weight. C. energy used in a given period of time. D. heat given off by contracting muscles.
Which of the following is true about skeletal muscle?
A. Sensory neurons stimulate muscles to contract. B. There are very few blood vessels in skeletal muscle. C. Every muscle fiber receives a branch of an axon from the nerve. D. There are very few nerve fibers in a muscle. E. All of these are true.
Structures in the head are innervated by the sympathetic division by postganglionic fibers originating in (the)
A) superior mesenteric ganglion. B) inferior cervical ganglion. C) inferior mesenteric ganglion. D) superior cervical ganglion. E) None of the answers are correct.
The E site of a ribosome is where
A. the polypeptide elongates. B. new amino acids enter the ribosome. C. the tRNA exits the ribosome.