Phosphorylation is carried out by a
A. phosphatase, and it results in the negative feedback inhibition of an enzyme.
B. kinase, and it may activate some enzymes and inhibit others.
C. phosphatase, and it may activate some enzymes and inhibit others.
D. kinase, and it results in the negative feedback inhibition of an enzyme.
Answer: B
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During defecation,
A) the external anal sphincter contracts. B) stretch receptors in the rectal wall activate both sympathetic and parasympathetic centers in the spinal cord. C) the internal anal sphincter is consciously relaxed. D) stretch receptors in the rectal wall activate parasympathetic centers in the spinal cord. E) stretch receptors in the rectal wall activate sympathetic centers in the spinal cord.
Bones are classified as irregular, flat, short, or long
Indicate whether the statement is true or false
All of the following are functions of the skeletal system EXCEPT ________
A) maintaining body temperature B) supporting the body's soft tissue C) manufacturing blood cells D) serving as levers that allow the muscular system to produce movement
What is the excretion rate/plasma concentration equal to?
A) filtration fraction B) excretion rate C) clearance D) renal blood flow E) filtered load