Pathophysiology, QUESTIONS AND
VERIFIED CORRECT ANSWERS
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klinefelter - CORRECT ANSWER-A person with XXXY has the genetic disorder called __________
syndrome.
a. down
b. fragile x
c. klinefelter
d. turner
autosomal recessive - CORRECT ANSWER-Cystic fibrosis is caused by an __________________
gene.
a. x-linked dominant
b. autosomal recessive
c. autosomal dominant
d. x-linked recessive
What causes the clinical manifestations of confusion, convulsions, cerebral hemorrhage, and
coma in hypernatremia?
,A) high sodium in the blood vessels pulls water out of the brain cells into the blood vessels,
causing brain cells to shrink
B) high sodium in the brain cells pulls water out of the blood vessels into the brain cells, causing
them to swell
C) high sodium in the blood vessels pulls potassium out of the brain cells, which slows the
synapses in the brain
D) high sodium in the blood vessels draws chloride into the brain cells followed by water,
causing the brain cells to swell - CORRECT ANSWER-Ans: A- high sodium in the blood vessels
pulls water out of the brain cells into the blood vessels, causing brain cells to shrink
mitochondria - CORRECT ANSWER-Organelle that contains the code needed for oxidative
phosphorylation is:
a. mitochondria
b. lysosomes
c. nucleus
d. vacuoles
Apoptosis - CORRECT ANSWER-Programmed cell death is an active process of cellular self-
destruction. It is also referred to as
a. apoptosis
b. necrosis
c. metastatic calcification
d. gangrene
Histones - CORRECT ANSWER-The nucleolus is a small dense structure composed mainly of RNA
and cellular DNA. What causes the DNA to bind and fold into chromosomes?
a. amino acid sequences
b. histones
c. polymerase
,d. miRNA
x-linked recessive disease - CORRECT ANSWER-Duchenne's Muscular Dystrophy is never
transmitted from father to son. It is a good example of
a. sex-linked recessive disease
b. autosomal dominant disease
c. x-linked recessive disease
d. chromosome structure abnormality disease
Eosinophils - CORRECT ANSWER-Which cell is the body's primary defense against parasite
invasion?
a. t lymphocytes
b. neutrophils
c. eosinophils
d. b lymphocytes
classic - CORRECT ANSWER-Which pathway in the complement system is activated by an
antigen-antibody response?
a. lectin
b. classic
c. alternative
d. none of the above
severe loss of CD4 Th cells - CORRECT ANSWER-The hallmark of AIDS profound
immunosuppression, results from:
a. proper function of helper t cells
b. infection of b cells
, c. severe loss of CD4 Th cells
d. none of the above
exotoxins - CORRECT ANSWER-These are proteins released by bacteria during growth.
a. endotoxins
b. TNF
c. exotoxins
d. pili
True - CORRECT ANSWER-Activation of the complement cascade may destroy pathogens
directly and can activate with virtually every other component of the inflammatory response.
True/False
Considering the hypothalamus, a fever is produced by:
A) endogenous pyrogen acting directly on the hypothalamus
B) exogenous pyrogens acting directly on the hypothalamus
C) immune complexes acting indirectly on the hypothalamus
D) cytokines acting indirectly on the hypothalamus - CORRECT ANSWER-Ans: A- endogenous
pyrogen acting directly on the hypothalamus
gram-negative bacteria - CORRECT ANSWER-One of the leading causes of death in the intensive
care unit is the release of sufficient amounts of endotoxin resulting in endotoxic (septic) shock.
The most common cause is:
a. cachectin
b. fungi
c. gram-positive bacteria