During sleep, the metabolic rate is ________ and the number of respirations _________.
A) low, increases
B) high, decreases
C) low, decreases
D) high, increases
Answer: C) low, decreases
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Which of the following is synthesized inside certain cells and is eventually secreted
a. tRNA b. clathrin c. dynamin d. steroid hormone e. ATP
Which statement regarding sodium reabsorption is not accurate?
a. it plays a role in glucose, amino acid, and urea reabsorption in the proximal tubule. b. it is under hormonal control in the distal tubule. c. in the loop of Henle, it contributes to the formation of concentrated urine. d. approximately 0.5% of sodium is reabsorbed on a daily basis. e. aldosterone is a key hormone involved in facultative reabsorption.
Sensible perspiration
A. is water lost through simple evaporation. B. is secreted by the sweat glands. C. is secreted by salivary glands. D. contains only water. E. is invisible on the skin.
The absence or inhibition of acetylcholinesterase at a synapse would lead to ________
A) atrophy B) numbness C) muscle wasting D) tetanus E) flaccid paralysis