Previous Quizes/ Tests

Question 1

Your patient becomes sick due to an infection by the influenza virus and now has the flu. THe cells which would most directly lyse virally infected host cells in this case mature where in the body?
A. Bone marrow
B. Thymus
C. Lymph nodes
D. Spleen

Answer 1

B. Thymus

Question 2

Which type of phagocytic immune cell would you find in the nasal epithelium?
A. Monocytes
B. Macrophages
C. B-cell
D. Basophils

Answer 2

B. Macrophages

Question 3

The major roles of the immune system includes
A. Defense against infection 
B. Clearance of necrotic tissue
C. Both A and B
D. Neither A nor B

Answer 3

C. Both defense against infection, and clearance of necrotic tissues

Question 4

A patient was found to not produce lymphoid progenitor cells. Which of the following cells would be absent in his blood work?
A. Basophils
B. Natural killer cells
C. Platelets
D. Monocytes

Answer 4

B. Natural killer cells

Question 5

Which of the following describes neutrophils?
A. Multi-lobed nucleus, highly phagocytic; attack bacterial and viral invaders
B. Bi-lobed nucleus; moderately phagocytic; attack allergens and parasites
C. Circular nucleus; resides in tissues; attack bacteria, allergens, and parasites
D. Bi-lobed nucleus; less than 1% of the leukocyte population; attack allergens and parasites

Answer 5

A. Multi-lobed nucleus, highly phagocytic; attack bacterial and viral invaders

Question 6

Which of the following is involved in resistance to parasitic helminths?
A. Basophils
B. Eosinophils
C. Lymphocytes
D. Monocytes

Answer 6

B. Eosinophils

Question 7

Imagine that you have a patient that is deficient in monocytes and macrophages. This patient would likely have a defect in which cell?
A. Innate immune cells
B. Myeloid precursor cells
C. Granulocytes
D. Lymphoid precursor cells

Answer 7

B. Myeloid precursor cells

Question 8

Innate and adaptive immune systems can function independently of each other: True or false?

Answer 8

False

Question 9

Which of the following is found in the blood stream only?
A. Monocytes
B. Macrophages
C. B-cells
D. Basophils

Answer 9

A. Monocytes

Question 10

Certain types of capsule components can bind to a B-cell receptor but cannot elicit an immune response. These components are called: 
A. Immunogens
B. Antigens
C. Haptens
D. Duds

Answer 10

B. Antigens

Question 11

All of the following are true regarding natural killer cells EXCEPT
A. They release toxic substances that cause cell lysis or apoptosis
B. They have the ability to kill infected body cells and some tumor cells
C. They destroy infected body cells by phagocytosis
D. They are a type of lymphocyte

Answer 11

C. They destroy infected body cells by phagocytosis (FALSE)

Question 12

Antigen-antibody complexes (immune complexes) are responsible for the activation of the \_\_\_\_\_\_\_\_\_\_\_\_ complement system
A. Alternate
B. Lectin
C. Innate
D. Classical

Answer 12

D. Classical

Question 13

Which of the following would put you at increased risk of pathogens entering your body?
A. A mutation preventing you from making lysozyme
B. Trimming all the nose hairs from inside your nostrils
C. A mutation that causes your mucus secretions to be extremely watery
D. All of the above

Answer 13

D. All of the above

Question 14

Which of the following components of the immune system destroys bacteria in a way similar to an anti-tank weapon destroying armored military tanks?
A. Plasma cells
B. Complement proteins
C. Macrophages 
D. MHC proteins

Answer 14

B. Complement proteins (MAC attack)