HCR 240 Exam 1 || Acknowledged Answers 100%.
It is true that a eukaryotic cell
is smaller than a prokaryotic cell
lacks a well-defined nucleus
does not contain histones
contains structures called organelles correct answers contains structures called organelles
The cell's energy producers are called
mitochondria
ER
Golgi complex
nucleolus correct answers mitochondria
Movement of a solute molecule from an area of high concentration to an area of low
concentration is called
osmosis
diffusion
hydrostatic pressure
filtration correct answers diffusion
Which are the roles of relay chains in signal transduction?
amplify the signal
,transfer the signal
distribute the signal
converge the signal correct answers amplify the signal
transfer the signal
distribute the signal
For optimal cell function which of the following is necessary:
potassium higher outside and sodium higher inside the cell
potassium ions need to be at higher concentration inside the cell and sodium need to be at higher
concentration outside the cell correct answers potassium ions need to be at higher concentration
inside the cell and sodium need to be at higher concentration outside the cell
Which are causes of cellular injury?
genetic
chemical injury
hypoxia cell injury
antioxidants correct answers genetic
chemical injury
hypoxia cell injury
Which statement is true regarding apoptosis?
is the process of cellular self-digestion
an active process of cellular self-destruction
local cell death after severe and sudden injury
,is defined as decrease or shrinkage of cellular size correct answers an active process of cellular
self-destruction
Which of the following is an increase in cell number?
Hyperplasia
Metaplasia
Dysplasia
Atrophy correct answers Hyperplasia
Only cells that can divide will undergo hyperplasia; therefore, hyperplasia of the myocytes in the
health and neurons in the brain does not occur correct answers true
The most common cause of hypoxia is
ischemia
anoxia
anemia correct answers ischemia
The most common heat related injury is
heat cramps
heat stroke
heat exhaustion correct answers heat exhaustion
Sunburn by excessive exposure to sunlight is an observable example of cell injury by
free radical injury
, chemical injury
physical agents
hypoxic cell injury correct answers physical agents
Which of the following occur as a result of decreases in workload, use, pressure, blood supply,
nutrition, hormonal stimulation, and nervous stimulation?
pathologic atrophy
pathologic hypertrophy
pathologic hyperplasia
physiologic atrophy correct answers pathologic atrophy
Which of the following are examples of hypoxia in inflammatory conditions?
acute lung injury
colitis
cancer
infections with pathogens correct answers acute lung injury
colitis
infections with pathogens
According to the text, the world's largest single environment health risk is:
air pollution
prescription drug addiction
lead poisoning
carbon monoxide poisoning correct answers air pollution
It is true that a eukaryotic cell
is smaller than a prokaryotic cell
lacks a well-defined nucleus
does not contain histones
contains structures called organelles correct answers contains structures called organelles
The cell's energy producers are called
mitochondria
ER
Golgi complex
nucleolus correct answers mitochondria
Movement of a solute molecule from an area of high concentration to an area of low
concentration is called
osmosis
diffusion
hydrostatic pressure
filtration correct answers diffusion
Which are the roles of relay chains in signal transduction?
amplify the signal
,transfer the signal
distribute the signal
converge the signal correct answers amplify the signal
transfer the signal
distribute the signal
For optimal cell function which of the following is necessary:
potassium higher outside and sodium higher inside the cell
potassium ions need to be at higher concentration inside the cell and sodium need to be at higher
concentration outside the cell correct answers potassium ions need to be at higher concentration
inside the cell and sodium need to be at higher concentration outside the cell
Which are causes of cellular injury?
genetic
chemical injury
hypoxia cell injury
antioxidants correct answers genetic
chemical injury
hypoxia cell injury
Which statement is true regarding apoptosis?
is the process of cellular self-digestion
an active process of cellular self-destruction
local cell death after severe and sudden injury
,is defined as decrease or shrinkage of cellular size correct answers an active process of cellular
self-destruction
Which of the following is an increase in cell number?
Hyperplasia
Metaplasia
Dysplasia
Atrophy correct answers Hyperplasia
Only cells that can divide will undergo hyperplasia; therefore, hyperplasia of the myocytes in the
health and neurons in the brain does not occur correct answers true
The most common cause of hypoxia is
ischemia
anoxia
anemia correct answers ischemia
The most common heat related injury is
heat cramps
heat stroke
heat exhaustion correct answers heat exhaustion
Sunburn by excessive exposure to sunlight is an observable example of cell injury by
free radical injury
, chemical injury
physical agents
hypoxic cell injury correct answers physical agents
Which of the following occur as a result of decreases in workload, use, pressure, blood supply,
nutrition, hormonal stimulation, and nervous stimulation?
pathologic atrophy
pathologic hypertrophy
pathologic hyperplasia
physiologic atrophy correct answers pathologic atrophy
Which of the following are examples of hypoxia in inflammatory conditions?
acute lung injury
colitis
cancer
infections with pathogens correct answers acute lung injury
colitis
infections with pathogens
According to the text, the world's largest single environment health risk is:
air pollution
prescription drug addiction
lead poisoning
carbon monoxide poisoning correct answers air pollution
