Pathophysiology Finals
physiologic jaundice - Correct answerA 3-day old infant is noted to have a mildly
elevated unconjugated bilirubin level and icterus. Your concern is that this child may
have:
a. physiologic jaundice
b. kernicterus
c. glucose-6-phosphate dehydrogenase deficiency
d. pathologic jaundice
Lysosomes - Correct answerWhich cell component is capable of cellular
autodigestion when it is released during cell injury?
a. lysosomes
b. ribosomesc. smooth endoplasmi
c reticulum
d. golgi complex
Which component of the cell produces hydrogen peroxide (H2O2) by using oxygen to
remove hydrogen atoms from specific substrates in an oxidative reaction?
A) lysosomes
B) peroxisomes
C) ribosomes
D) oxyhydrosomes - Correct answerAns: B- peroxisomes
Contain organelles and complex internal membranes - Correct answerThe
difference between eukaryotes and prokaryotes is that eukaryotes:
a. all of these answers are correct
b. are smaller in size
c. contain organelles
d. have no nuclear membrane
What is a consequence of plasma membrane damage to the mitochondria?
A) enzymatic digestion halts deoxyribonucleic acid (DNA) synthese
B) influx of calcium ions halts adenosine triphosphate (ATP) production
C) edema from an influx in sodium causes a reduction in ATP production
D) potassium shifts out of the mitochondria, which destroys the infrastructure - Correct
answerAns: B- influx of calcium ions halts adenosine triphosphate (ATP) production
Packages protein for secretion to the outside of the cell - Correct answerWhich of
the following is function of Golgi?
,a. Packages protein for secretion to the outside of the cell
b. Produces ATP for cell function
c. Contains hydrolytic enzymes
d. Is the site of protein synthesis in a cell
Which statement is a description of one of the characteristics of apoptosis?
A) apoptosis involves programmed cell death of scattered singel cells
B) apoptosis is characterized by the swelling of the nucleus and the cytoplasm
C) apoptosis involves unpredictable patterns of cell death
D) apoptosis results in benign malignancies - Correct answerAns: A- apoptosis
involves programmed cell death of scattered singel cells
During cell injury caused by hypoxia, sodium and water move into the cell because:
A) during cell injury cause by hypoxia, sodium and water move into the cell because:
B) the pump that transports sodium out of the cell cannot function because of a
decrease in adenosine triphosphate (ATP) levels
C) the osmotic pressure is increased, which pulls additional sodium across the cell
membrane
D) oxygen is not available to bind with sodium to maintain it outside of the cell -
Correct answerAns: C- the osmotic pressure is increased, which pulls additional
sodium across the cell membrane
Is the site of protein synthesis in a cell - Correct answerWhich of the following is
function of the rough endoplasmic reticulum?
a. Contains hydrolytic enzymes
b. Is the site of protein synthesis in a cell
c. Packages protein for secretion to the outside of the cell
d. Produces ATP for cell function
Obesity creates a greater risk for dehydration in people because:
A) adipose cells contain little water because fat is water repelling
B) the metabolic rates of obese adults are slower than those of lean adults
C) the rates of urine output of obese adults are higher than thos of lean adults
D) the thirst receptors of the hypothalamus do not function effectively - Correct
answerAns: A- adipose cells contain little water because fat is water repelling
Epigenetic modifications - Correct answerWhat genetic process is likely responsible
for the occurrence of asthma in only one of a pair of identical twins?
a. genomic imprinting
b. epigenetic modifications
c. methylation
d. transgenerational inheritance
, RNA is synthesized from a DNA template - Correct answerTranscription is best
defined as a process by which
a. A base pair substitution results in a mutation of the amino acid sequence
b. DNA polymerase binds to the promoter site on RNA.
c. RNA directs the synthesis of ribosomes for protein synthesis
d. RNA is synthesized from a DNA template
nondisjunction error - Correct answerWhat is the most common cause of Down
syndrome?
a. paternal translocation
b. paternal viral illness
c. nondisjunction error
d. maternal viral illness
klinefelter - Correct answerA person with XXXY has the genetic disorder called
__________ syndrome.
a. down
b. fragile x
c. klinefelter
d. turner
autosomal recessive - Correct answerCystic 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 answerAns: 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 answerOrganelle that contains the code needed for oxidative
phosphorylation is: