BIO Exam 2

Question 1

Which of the following cell types does NOT produce interferon (IFN)?

Answer 1

Erythrocytes

Question 2

What is the C3 activation complex in the Alternative complement pathway?

Answer 2

C3b, Bb, P

Question 3

Q: Tissue transplant rejection is usually caused by what mechanism?

Answer 3

Cytotoxic T Lymphocytes

Question 4

M cells of the mucous membrane are part of what defense mechanism?

Answer 4

Barriers at the body surface

Question 5

Antibodies that bind to a gram-negative cell most likely bind to which structure?

Answer 5

O-polysaccharide

Question 6

What are PAMPs?

Answer 6

Molecular patterns associated with pathogens

Question 7

What is the C5 activation complex in the Classical complement pathway?

Answer 7

C2a, C4b, C3b

Question 8

Which complement component is known as a good opsonin?

Answer 8

C3b

Question 9

Which complement components make up the MAC (Membrane Attack Complex)?

Answer 9

C5b, C6, C7, C8, C9

Question 10

What is the role of Interferon?

Answer 10

Antiviral

Question 11

Which antibody crosses the placenta to protect the fetus?

Answer 11

IgG

Question 12

Which antibody is best for activating the complement system?

Answer 12

IgM

Question 13

Which antibody is found on the surface of B-cells and acts as a BCR?

Answer 13

IgM

Question 14

Which antibody is involved in hypersensitivity reactions (allergies)?

Answer 14

IgE

Question 15

What biological signal from a dendritic cell causes TH cells to produce IL-2?

Answer 15

CD28 binds to B7

Question 16

What type of cells display antigens on MHC II?

Answer 16

APC

Question 17

After a bacterium is phagocytized by a neutrophil, where is it digested?

Answer 17

Phagolysosome

Question 18

What is the outside layer of skin called?

Answer 18

Stratum Cornium

Question 19

what are goblet cells

Answer 19

Mucus

Question 20

What are m-cells

Answer 20

are in the mucus membrane

Question 21

Second line of defense

Answer 21

Inflammation

Question 22

Damaged tissue is called…

Answer 22

Sterile inflammation

Question 23

What are the 4 main cardanol signs of inflammation

Answer 23

redness, pain, heat, swelling

Question 24

What are cox2

Answer 24

acetylsalicylic acid

Question 25

Prostaglandin is going to cause what?

Answer 25

Vasocliolation and vasopermability and chemotactic, acute pain

Question 26

What binds to the mast cells and activates bradykinin

Answer 26

Prostaglandin

Question 27

what do mast cells produce

Answer 27

Histamine

Question 28

Bradykinin causes what

Answer 28

Chronic pain

Question 29

PAMPS bind to

Answer 29

PRRs

Question 30

What is IL-1

Answer 30

Causes fever by getting into the blood and causing hypothalamus in the brain

Question 31

when temp increase

Answer 31

skin feels cold and clammy

Question 32

Your body temp is dropping

Answer 32

Crisis

Question 33

what are the optimism (sticks bacteria to phagocytes) are in the body?

Answer 33

C3b, antibodies

Question 34

What is the C5 activation complex in the alternative system?

Answer 34

C3b,Bb, P, C3b

Question 35

Humoral responses

Answer 35

Extracellular antigen, Antibodies, classical complement, opsonin, ADCC response

Question 36

Cell mediated response

Answer 36

Inter cellular pathogens kill viruses, the thymus, MHC restricted, Cancer, tissue rejection