Noncompetitive inhibition of an enzyme occurs when the inhibitor binds to the
A. active site, and its effectiveness is not influenced by substrate concentration.
B. allosteric site, and its effectiveness depends on substrate concentration.
C. allosteric site, and its effectiveness is not influenced by substrate concentration.
D. substrate, and its effectiveness depends on product concentration.
E. active site, and its effectiveness depends on substrate concentration.
Answer: C
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Answer the following statements true (T) or false (F)
1) Periosteum covers the outer surface of a bone. 2) The metaphysis is the tubular shaft of a long bone. 3) A displaced fracture retains the normal alignment of the bone elements or fragments. 4) A compression fracture occurs particularly in vertebrae subjected to extreme stress, such as when landing on the gluteal region after a fall. 5) A Pott fracture occurs at the ankle and affects both bones of the lower leg.
Vascular spasm as a result of trauma to vessels minimizes blood loss by
a. slowing blood flow through the vessels as a consequence of constriction. b. pressing together the surfaces of the vessel, promoting adhesion and sealing off the damaged vessel. c. slowing blood flow as a result of sympathetic stimulation. d. Only two of these. e. All of these.
The adrenal gland produces sex steroids known as gonadocorticoids.
Answer the following statement true (T) or false (F)
Symphyses are the most common type of fibrous joints.
Answer the following statement true (T) or false (F)