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NUR612 Pathophysiology Final McCance & Huether (8th ed.,2024) Questions And Answers
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NUR612 Pathophysiology Final McCance & Huether (8th ed.,2024) Questions And Answers
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NUR612 Pathophysiology Final McCance& Huether (8th ed.,2024) Questions And
Answers
It is true that a eukaryotic cell
A. is smaller than a prokaryotic cell.
B. contains structures called organelles.
C. lacks a well-defined nucleus.
D. does not contain histones. - correct answer B. Contains structures
called organelles.
Eukaryotic cells contain organelles and histones, they have a well-
defined nucleus, and are larger than prokaryotic cells.
Ch01.1
The function of a histone found in a eukaryote cell focuses on cellular
A. division.
B. movement.
C. activities.
D. deoxyribonucleic acid (DNA) folding. - correct answer D.
deoxyribonucleic acid (DNA) folding.
,NUR612 Pathophysiology Final McCance
& Huether (8th ed.,2024) Questions And
Answers
The histones are binding proteins that cause the supercoiling of DNA
into chromosomes and do not affect cellular division, movement, or
activities.
Ch01.2
An organelle that is responsible for the metabolism of cellular energy is
referred to as a/an
A. Golgi complex.
B. mitochondrion.
C. endoplasmic reticulum.
D. nucleolus. - correct answer B. mitochondrion
Mitochondria play a role in cellular metabolism, cellular respiration, and
energy production. The Golgi complex is responsible for processing and
packaging proteins from the endoplasmic reticulum, where they are
synthesized. The nucleolus is a small, dense structure that contains the
ribonucleic acid (RNA), DNA, and DNA-binding proteins.
Ch01.3
Which statement best describes a desmosome?
,NUR612 Pathophysiology Final McCance
& Huether (8th ed.,2024) Questions And
Answers
A. A desmosome is a barrier to diffusion.
B. Desmosomes hold cells together by continuous bands.
C. A desmosome is a communicating tunnel.
D. Desmosomes function as a zona occludens. - correct answer B.
Desmosomes hold cells together by continuous bands.
The desmosome is a type of cell junction. The other two types include
tight junctions and gap junctions. Desmosomes hold cells together by
forming a continuous band of epithelial tissue or belt (or button-like)
points of contact. They are also a source of structural stability. Tight
junctions serve as barriers to diffusion and prevent the movement of
substances through transport proteins. Gap junctions are clusters of
communicating tunnels.
Ch01.4
Which statement describes the function of a second messenger?
A. Binds with membrane-bound receptors via a ligand
B. Triggers a cascade of intracellular events
C. Opens specific channels in the cell membrane
D. Blocks a membrane-bound receptor signal - correct answer B.
Triggers a cascade of intracellular events
, NUR612 Pathophysiology Final McCance
& Huether (8th ed.,2024) Questions And
Answers
The binding of a ligand to a cell surface receptor triggers the activation
of intracellular second messengers. Second messengers activate signal
transduction pathways in the cell that can initiate different intracellular
events. Cyclic adenosine monophosphate (cAMP) and calcium (Ca++)
are the two major second-messenger pathways. First messengers are
the extracellular ligands that bind to cell surface receptors. Binding of
first messengers can result in the opening or closing of specific cell
membrane channels or the activation of second messengers.
Ch01.5
Which statement is correct regarding cellular energy?
A. Glycolysis is the building of sugar molecules.
B. Oxidative cellular metabolism is a single reaction making adenosine
triphosphate
(ATP).
C. Oxidative phosphorylation occurs in the mitochondria.
D. Anaerobic glycolysis occurs in the presence of oxygen. - correct
answer C. Oxidative phosphorylation occurs in the mitochondria.
Oxidative phosphorylation occurs in the mitochondria. This is the
mechanism by which the energy produced from carbohydrates, fats,
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