In muscle cells, the sarcoplasmic reticulum is a storage site for ________
Fill in the blank(s) with correct word
calcium
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__________in breast milk promotes multiplication of the nonpathogenic microorganism Lactobacillus bifidus in the infant's digestive tract
Fill in the blank(s) with correct word
Which of the following statements regarding hearing is TRUE?
A. The pitch of sounds is conveyed by the amplitude of the vibration of the oval window. B. Low-pitched tones selectively cause vibration of the basilar membrane at a point closer to the oval window than high-pitched tones do. C. Sound is amplified as it is conducted from the oval window to the tympanic membrane. D. The loudness of a sound is conveyed by the frequency of action potentials generated in the cochlear nerve.
Pancreatic enzymes are secreted in response to a hormone called ________
A) gastrin B) secretin C) glucagon D) insulin E) cholecystokinin (CCK)
The stage of exhaustion in the stress response occurs after months of stress, and the body's homeostatic conditions deteriorate rapidly when
a. ATP can no longer be generated from mitochondria. b. the energy demands are met primarily by protein metabolism. c. the energy demands are met primarily by fat metabolism. d. the glycogen supplies are depleted. e. the energy demands are met primarily by carbohydrate metabolism.