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NURS 3140 Exam 1 Questions and Correct
Answers/ Latest Update / Already Graded
two patterns of reversible cell injury
Ans: -Cellular swelling: impairment of the energy-dependent
Na+/K+ ATPase membrane pump, usually as the result of
hypoxic cell injury.
-Fatty change: linked to intracellular accumulation of fat
Causes of cell injury
Ans: physical agents, radiation, chemical, biological agents,
nutritional imbalances
Mechanisms of cell injury
Ans: (1) Free radical formation/reactive oxygen species (2)
Hypoxia leading to ATP depletion (3) Impaired calcium
homeostasis
disruption of intracellular calcium homeostasis
Ans: Ischemia and toxins lead to an increase in intracellular
calcium which leads to further cell membrane damage and ATP
depletions
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Irreversible cell injury
Ans: necrosis, gangrene, apoptosis
Seyle's stress response theory
Ans: Alarm stage, resistance stage, exhaustion stage
Adrenal medulla/ hypothalamus release
Ans: Norepinephrine and epinephrine
posterior pituitary releases
Ans: ADH
Anterior pituitary releases
Ans: adrenocorticotropic hormone (ACTH)
Adrenal cortex releases
Ans: cortisol and aldosterone
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Transcription
Ans: Messenger RNA formed from DNA in nucleus
Translation
Ans: Synthesis of protein using mRNA template in cytoplasm
Mitosis
Ans: Replication of DNA to duplicate somatic cells in t he body.
Each of two resulting cells has an identical set of 23 pairs of
chromosomes.
Meiosis
Ans: Results in formation of gametes each of which has only a
single set of 23 chromosomes.
Penetrance
Ans: The percentage of individuals with a particular genotype
that actually displays the phenotype associated with the
genotype.
Expressivity
All rights reserved © 2025/ 2026 |
NURS 3140 Exam 1 Questions and Correct
Answers/ Latest Update / Already Graded
two patterns of reversible cell injury
Ans: -Cellular swelling: impairment of the energy-dependent
Na+/K+ ATPase membrane pump, usually as the result of
hypoxic cell injury.
-Fatty change: linked to intracellular accumulation of fat
Causes of cell injury
Ans: physical agents, radiation, chemical, biological agents,
nutritional imbalances
Mechanisms of cell injury
Ans: (1) Free radical formation/reactive oxygen species (2)
Hypoxia leading to ATP depletion (3) Impaired calcium
homeostasis
disruption of intracellular calcium homeostasis
Ans: Ischemia and toxins lead to an increase in intracellular
calcium which leads to further cell membrane damage and ATP
depletions
All rights reserved © 2025/ 2026 |
, Page |2
Irreversible cell injury
Ans: necrosis, gangrene, apoptosis
Seyle's stress response theory
Ans: Alarm stage, resistance stage, exhaustion stage
Adrenal medulla/ hypothalamus release
Ans: Norepinephrine and epinephrine
posterior pituitary releases
Ans: ADH
Anterior pituitary releases
Ans: adrenocorticotropic hormone (ACTH)
Adrenal cortex releases
Ans: cortisol and aldosterone
All rights reserved © 2025/ 2026 |
, Page |3
Transcription
Ans: Messenger RNA formed from DNA in nucleus
Translation
Ans: Synthesis of protein using mRNA template in cytoplasm
Mitosis
Ans: Replication of DNA to duplicate somatic cells in t he body.
Each of two resulting cells has an identical set of 23 pairs of
chromosomes.
Meiosis
Ans: Results in formation of gametes each of which has only a
single set of 23 chromosomes.
Penetrance
Ans: The percentage of individuals with a particular genotype
that actually displays the phenotype associated with the
genotype.
Expressivity
All rights reserved © 2025/ 2026 |
