bio 231 quizzes for all modules 2022 graded a bio231 quizzes for all modules 2022 graded a
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BIO 231 (BIO231)
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Module 1 Exam- Requires Respondus LockDown Browser Results for Amanda Smith
Score for this quiz: 97.5 out of 100
Submitted Jan 10 at 10:16pm
This attempt took 83 minutes.
Question 1
2..5 pts
True/False:
Nutritional deprivation can cause tissue to atrophy.Correct!
True
False
Question 2
2..5 pts
True/False:
Barrett esophagus is an example of dysplasia.
Truerect!
False
It’s metaplasia.
Question 3
2..5 pts
True/False:
Cervical intraepithelial neoplasia is a type of dysplasia. rrect!
True
False
Question 4
2..5 pts
True/False:
Lack of nerve stimulation can cause cells to atrophy.orrect!
True
False
Question 5
pts
Match the following:
1. Proportion of people with a disease who are positive for that disease
a. Validity
2. How likely the same result will occur if repeated
b. Reliability
3. How a tool measures what it is intended to measure
c. Sensitivity
4. People without the disease who are negative on a given test
d. Specificityct!
Proportion of people with a disease who are positive for that disease
c. Sensitivity
,How likely the same result will occur if repeated
b. Reliability
rect!
How a tool measures what it is intended to measure
a. Validity
orrect!
People without the disease who are negative on a given test
d. Specificity
Question 6
2..5 pts
Multiple Choice
Which is NOT true of the cytoskeleton?
It controls shape and movement
Cilia and flagella are microtubule-filled cellular extensions rect!
It includes peroxisomes and proteasomes
Peroxisomes and proteasomes are not part of the cytoskeleton.
Question 7
2..5 pts
Which of the following are true of the cell? Select all that apply.orrect!
Proteins carry out the functions of the cell membrane
Lysosomes are the digestive system of the cell
The rough ER is the site for lipid synthesisCorrect!
Microfilaments are thin, threadlike cytoplasmic structures
Question 8
2..5 pts
Multiple Choice
Which of the following are false of the cell?
Proteins carry out the functions of the cell membrane.
Lysosomes are the digestive system of the cell. rrect!
The rough ER is the site for lipid synthesis.
Microfilaments are thin, threadlike cytoplasmic structures.
Question 9
.5 pts
Which of the following do NOT move across the cell membrane via diffusion? Select all that apply.
OxygenCorrect!
GlucoseYou Answered
Water
Carbon dioxide
,Question 10
2..5 pts
Multiple Choice
Which best describes the definition of etiology?
The study of disease progression
The study of disease populationsCorrect!
The study of disease causes
The study of disease resolution
Question 11
2..5 pts
Multiple Choice
A patient has a fever and rash. What are these examples of?Correct!
Signs
Symptoms
Both A & B
Question 12
2..5 pts
Multiple Choice
Which of the following is true of a test’s sensitivity?
It is how likely the same result will occur if repeatedCorrect!
If negative, it can safely be assumed that the person does not have a disease
It is considered a true-negative result
It can only be calculated from people without the disease
Question 13
2..5 pts
Multiple Choice
Chemical agents (poison, alcohol) are examples of which of the following?
Risk factors
Clinical manifestations
Pathogenesisorrect!
Etiologic factors
Question 14
pts
Define tertiary prevention and give an example:
Your Answer:
Arises after a diagnosis and is where clinical intervents are needed to decrease complications.
Priscription medicine is an example of ths, if you have a heart attack and they put you on medication
that will help reduce the likely hood of another event. Overall it reduces complications of diseases.
Tertiary prevention occurs after a disease has been diagnosed and clinical intervention is
needed to reduce complications or deterioration. One example is the use of certain
medications one must take after a heart attack to help reduce the risk of a future event or
death.
Question 15
, pts
Explain apoptosis and why it is necessary:
Your Answer:
Apoptosis is the process of removing cells during their development. It eliminates pre-cancerous
cells and/or virus infected cells.
It is necessary for apoptosis to happen because it maintains the balance of the cells in us and is very
important to our immune system.
Apoptosis is programmed cell death. This process eliminates cells that are worn out, have
been produced in excess, have developed improperly, or have genetic damage. Apoptosis is
also responsible for several normal physiologic processes, like replacing cell in the intestinal
villi and removing aging red blood cells.
Question 16
pts
Explain what necrosis is and give an example and description of one type of necrosis.
Your Answer:
Necrosis is cell death in our organs or tissues that is still apart of us (living person). Nercrosis
interferes with our cell replacement and tissue reguvination. Necrosis Coagulative necrosis is from
the blood supply being cutoff from a organ like the heart or kidney.
Necrosis refers to cell death in an organ or tissues that is still part of a living person. It often
interferes with cell replacement and tissue regeneration. Coagulative necrosis results most
often from a sudden cutoff of blood supply to an organ (ischemia), particularly the heart and
kidney. Liquefactive necrosis occurs when some of the cells die but their catalytic enzymes
are not destroyed. It is commonly seen with brain infarcts or abscesses. Caseous necrosis
occurs as part of granulomatous inflammation and is most often associated with tuberculosis.
Gangrenous necrosis most often affects the lower extremities or bowel and is secondary to
vascular occlusion. The term gangrene is applied when a considerable mass of tissue
undergoes necrosis. In dry gangrene the affected tissue becomes dry and shrinks, the skin
wrinkles, and its color changes to dark brown or black. The spread of dry gangrene is slow. It
results from a cut off in arterial blood supply and is a form of coagulation necrosis. In wet
gangrene, the affected area is cold, swollen, and pulseless. The skin is moist, black, and
under tension. Blebs form on the surface, liquefaction occurs, and a foul odor is caused by
bacterial action. The spread of tissue damage is rapid.
Question 17
pts
Match the type of cell injury to the cause. Some answer may be used more than once.
1. Viruses a. Physical agents
2. Alcohol b. Radiation injury
3. Reactive oxygen species c. Chemical injury
4. Electrical burn d. Biologic agents
5. Thermal burn e. Nutritional imbalances
6. Iron deficiency anemia f. Free radical injury
7. Mercury toxicity g. Hypoxic cell injury
8. Low oxygen to tissues
9. Parasites
10. Fracturesorrect!
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