Which of the following is NOT associated with
rheumatoid arthritis?
a. autoimmune disorder.
b. damage to lining of synovial joints
c. women are more often affected
d. can occur at any age
e. crystals of uric acid accumulate in joints
Answer: e
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The starch production center within many algal cells is the
(a) nucleus. (b) cytoplasm. (c) stipe. (d) pyrenoid.
Very low concentrations of detergent make membranes leaky to small molecules and ions without damaging proteins. In isolated mitochondria exposed to detergent, the molecules of the electron transport chain and of ATP synthase remain intact
Do you expect ATP synthesis to continue in the presence of low concentrations of detergent? A. Yes, because all enzymes and electron carriers are functional. B. No, because with a leaky membrane, H+ gradient cannot be maintained. C. No, because leaky membranes do not allow NADH and FADH2 to donate their electrons to the electron transport chain. D. because leaky membranes inhibit glycolysis.
Which of Lamarck's ideas was the least influential to Darwin’s evolutionary theory?
a. Species change through time. b. New characteristics are passed from one generation to the next. c. Organisms change in response to their environment. d. Acquired characteristics are passed on from parents to offspring. e. Specific mechanisms exist that foster evolutionary change.
During their diastole, the heart chambers are contracting.
Answer the following statement true (T) or false (F)