BIO 320 EXAM 2 NEWEST 2025 ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Which of the following can lead to a cerebral vascular event (e.g. stroke)? (check
all that apply)
a. vessel rupture (aneurysm)
b. impaired cerebral spinal fluid (CSF) production
c. embolic occlusion
d. thrombotic occlusion
- ans -a. vessel rupture (aneurysm)
c. embolic occlusion
d. thrombotic occlusion
what are three causes of hypersensitivity diseases?
- ans -1. autoimmunity
2.reactions against microbes
3. reactions against environmental antigens
What is hypersensitivity? - ans -immune response, sensitization, inappropriate
response
what is type 1 hypersensitivity - ans -igE mediated
what is type 2 hypersensitivity - ans -tissue mediated or specific
(antibody mediated)
what is type 3 hypersensitivity - ans -immune complex mediated
What is type 4 hypersensitivity? - ans -T cell mediated
what types of hypersensitivity are b cell mediated? - ans -type 1, 2, and 3
Which of the following can be clinical manifestations of a type III hypersensitivity?
a. reactive arthritis
b. all of these are examples of clinical manifestations
c. deposition of medium complexes (antigen/antibody complexes)
d. vasculitis - ans -b. all of these are examples of clinical manifestations
,Which of the following is/are a common cause(s) of secondary autoimmune
diseases? (check all that apply)
a. inherited from parents
b. malnutrition
c. single gene defect
d. stress
- ans -b. malnutrition
d. stress
Which of the following types of hypersensitivity would be associated with a tissue
transplant rejection from one patient (donor) to another (recipient)?
a. Type I
b. Type III
c. Type IV
d. Type II - ans -c. Type IV
Which of the following are morphological alterations or clinical manifestations
found in patients who suffer from systemic lupus erythematosus (SLE)?
a. myasthenia gravis
b. Skin erythema ("butterfly" rash)
c. graves disease
d. type I hypersensitivity - ans -b. Skin erythema ("butterfly" rash)
Which of the following types of hypersensitivity would be associated with a food
allergy to peanuts?
a. Type II
b. Type IV
c. Type III
d. Type I - ans -d. Type I
, A 32-year-old man reports that he was eating peanut butter cookies and began to
feel "itchy". He then developed a rash over most of his body. The lesions
disappeared within 3-4 hours. The patient is diagnosed with urticaria. The
chemical mediator responsible for these lesions is derived from which of the
following cells?
a. Macrophages
b. Neutrophils
c. Mast cells
d. Killer Cells
e. Eosinophils - ans -c. Mast cells
Helper T-Cells (T-lymphocytes of the "helper" variety) are important for a
functional:
a. cell-mediated immunity
b. antibody-mediated immunity
c. wound-healing activity
d. both (a) and (b) above - ans -d. both (a) and (b) above
Which of the following is characteristic of only antibody-mediated immunity?
a. an anamnestic response
b. release of lymphokines by cells
c. release of antibodies by cells
d. antigen activation, requiring macrophage and T-helper cells
- ans -c. release of antibodies by cells
Which of the following is an example of a primary immune deficiency disease?
a. HIV
b. Hepatitis
c. Malnutrition
d. Bruton disease - ans -d. Bruton disease
Which of the following may result/cause T-cell loss?
2. A growing thymus in children up until puberty
3. HIV
4. Type 1 Hypersensitivity
5. vaccinations
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A+
Which of the following can lead to a cerebral vascular event (e.g. stroke)? (check
all that apply)
a. vessel rupture (aneurysm)
b. impaired cerebral spinal fluid (CSF) production
c. embolic occlusion
d. thrombotic occlusion
- ans -a. vessel rupture (aneurysm)
c. embolic occlusion
d. thrombotic occlusion
what are three causes of hypersensitivity diseases?
- ans -1. autoimmunity
2.reactions against microbes
3. reactions against environmental antigens
What is hypersensitivity? - ans -immune response, sensitization, inappropriate
response
what is type 1 hypersensitivity - ans -igE mediated
what is type 2 hypersensitivity - ans -tissue mediated or specific
(antibody mediated)
what is type 3 hypersensitivity - ans -immune complex mediated
What is type 4 hypersensitivity? - ans -T cell mediated
what types of hypersensitivity are b cell mediated? - ans -type 1, 2, and 3
Which of the following can be clinical manifestations of a type III hypersensitivity?
a. reactive arthritis
b. all of these are examples of clinical manifestations
c. deposition of medium complexes (antigen/antibody complexes)
d. vasculitis - ans -b. all of these are examples of clinical manifestations
,Which of the following is/are a common cause(s) of secondary autoimmune
diseases? (check all that apply)
a. inherited from parents
b. malnutrition
c. single gene defect
d. stress
- ans -b. malnutrition
d. stress
Which of the following types of hypersensitivity would be associated with a tissue
transplant rejection from one patient (donor) to another (recipient)?
a. Type I
b. Type III
c. Type IV
d. Type II - ans -c. Type IV
Which of the following are morphological alterations or clinical manifestations
found in patients who suffer from systemic lupus erythematosus (SLE)?
a. myasthenia gravis
b. Skin erythema ("butterfly" rash)
c. graves disease
d. type I hypersensitivity - ans -b. Skin erythema ("butterfly" rash)
Which of the following types of hypersensitivity would be associated with a food
allergy to peanuts?
a. Type II
b. Type IV
c. Type III
d. Type I - ans -d. Type I
, A 32-year-old man reports that he was eating peanut butter cookies and began to
feel "itchy". He then developed a rash over most of his body. The lesions
disappeared within 3-4 hours. The patient is diagnosed with urticaria. The
chemical mediator responsible for these lesions is derived from which of the
following cells?
a. Macrophages
b. Neutrophils
c. Mast cells
d. Killer Cells
e. Eosinophils - ans -c. Mast cells
Helper T-Cells (T-lymphocytes of the "helper" variety) are important for a
functional:
a. cell-mediated immunity
b. antibody-mediated immunity
c. wound-healing activity
d. both (a) and (b) above - ans -d. both (a) and (b) above
Which of the following is characteristic of only antibody-mediated immunity?
a. an anamnestic response
b. release of lymphokines by cells
c. release of antibodies by cells
d. antigen activation, requiring macrophage and T-helper cells
- ans -c. release of antibodies by cells
Which of the following is an example of a primary immune deficiency disease?
a. HIV
b. Hepatitis
c. Malnutrition
d. Bruton disease - ans -d. Bruton disease
Which of the following may result/cause T-cell loss?
2. A growing thymus in children up until puberty
3. HIV
4. Type 1 Hypersensitivity
5. vaccinations
