Pathophysiology 1 quiz/ Quiz Patho 1
1- Most of a cell’s genetic information, including RNA and DNA, is contained in the:
a. Mitochondria c. Nucleolus
b. Ribosome d. Lysosome
ANS: C
2- What is the sequence of st
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Pathophysiology 1 quiz/ Quiz Patho 1
1- Most of a cell’s genetic information, including RNA and DNA, is contained in the:
a. Mitochondria c. Nucleolus
b. Ribosome d. Lysosome
ANS: C
2- What is the sequence of steps in the development of a digestive enzyme by the pancreas cells from the initial transcription to the release from the cell?
a. The enzyme is transcribed from DNA by RNA in the nucleus, proceeds to the ribosome for synthesis, and is transported in a secretory vesicle to the cell membrane.
b. The enzyme is transcribed from RNA by DNA in the nucleus, proceeds to the lysosome for synthesis, and is transported in an encapsulated membrane to the cell membrane.
c. The enzyme is transcribed by the mitochondria in the nucleus, proceeds to the ribosome for synthesis, and is transported in a cytoskeleton to the cell membrane.
d. The enzyme is transcribed from DNA by RNA in the nucleus, proceeds to the Golgi complex for synthesis, and is transported in a cytosol to the cell membrane.
ANS: A
2- During which phase of the cell cycle is DNA synthesized?
a. G1 c. G2
b. S d. M
ANS: B
3- Why is it possible for potassium to diffuse easily into and out of cells?
a. Potassium has a greater concentration in the intracellular fluid (ICF).
b. Sodium has a greater concentration in the extracellular fluid (ECF).
c. The resting plasma membrane is more permeable to potassium.
d. An excess of anions are inside the cell.
ANS: C
4- What causes the rapid change in the resting membrane potential to initiate an action potential?
a. Potassium gates open, and potassium rushes into the cell, changing the membrane potential from negative to positive.
b. Sodium gates open, and sodium rushes into the cell, changing the membrane potential from negative to positive.
c. Sodium gates close, allowing potassium into the cell to change the membrane potential from positive to negative.
d. Potassium gates close, allowing sodium into the cell to change the membrane potential from positive to negative.
ANS: B
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