Part 2

Question 1

Antibodies are proteins secreted by ______ cells and are capable of binding to specific antigens

Answer 1

Plasma

Question 2

Antibodies consist of four protein chains, two identical _____ and two ____ chains.

Answer 2

Heavy

Light

Question 3

The variable region functions as the ______ _______ site where the constant region of the stem determines the _____ class

Answer 3

Antigen binding

class

Question 4

Antibody that attaches to the surface of cells

Answer 4

IgD

Question 5

Antibody that is active in some allergies and parasitic infections

Answer 5

IgE

Question 6

First antibody released

Answer 6

IgM

Question 7

Antibody found in mucus and other secretions

Answer 7

IgA

Question 8

Antibody that crosses the placental barrier

Answer 8

IgG

Question 9

Antibody that works as a pentamer

Answer 9

IgM

Question 10

Antibody that helps prevent entry of pathogens in the body

Answer 10

IgA

Question 11

75-85% of antibodies in plasma

Answer 11

IgG

Question 12

Readily fixes and activates complement

Answer 12

IgM

Question 13

Potent agglutinating agent

Answer 13

IgM

Question 14

Functions as B cell receptor

Answer 14

IgD

Question 15

Released in secondary and late primary response

Answer 15

IgG

Question 16

Causes mast cells and basophils to release histamine

Answer 16

IgE

Question 17

This is a defense mechanism used by antibodies that block specifics sites on viruses

Answer 17

Neutralization

Question 18

This is a defense mechanism used by antibodies that causes them to bind the same determinant on more than one cell-bound antigen

Answer 18

Agglutination

Question 19

This is a defense mechanism used by antibodies that is when soluble molecules are cross-linked

Answer 19

Precipitation

Question 20

This is the main antibody defense against cellular antigens

Answer 20

Complete fixation and Activation

Question 21

In cell mediated immune response, ___ cells provide defense against intracellular antigens

Answer 21

T cells

Question 22

The two major types of T lymphocytes are ___ which turn into helper T cells and ___ that turn into cytoxic

Answer 22

CD4

CD8

Question 23

MHC Class I proteins are displayed by all cells except

Answer 23

RBCs

Question 24

MHC class II proteins are displayed by

Answer 24

APC

Question 25

What are the two steps of T cell activation?

Answer 25

Antigen binding and Co-simulation

Question 26

This is when cells bind to other surface receptors on an ACP

Answer 26

Co-Simulation

Question 27

______ cells play a central role in adaptive immune response

Answer 27

Helper T cells

Question 28

These T cells directly attack and kill other cells

Answer 28

Cytotoxic

Question 29

Where do autographs come from?

Answer 29

Body site of the same person

Question 30

Where do isografts come from?

Answer 30

Identical twin

Question 31

Where do allografts come from?

Answer 31

between individuals who arent identical

Question 32

Where do xenographs come from?

Answer 32

Another species

Question 33

These are congenital or acquired conditions that cause immune cells, phagocytes or complement to behave abnormally

Answer 33

Immunodeficiences

Question 34

This develops when the immune system losses the ability to distinguish self from nonself

Answer 34

Auto Immune

Question 35

This is the immune response to to a perceived threat (harmless threat)

Answer 35

Hypersensitivity

Question 36

This Hypersensitivity begins in seconds after allergies have been exposed to the body

Answer 36

Acute or type one

Question 37

This is a Hypersensitivity where there is a systemic shock when the allergin enters the blood

Answer 37

Anaphylactic shock

Question 38

Antibodies bind to antigens on specfic body cells that simulate phagocytosis in this subacute Hypersensitivity

Answer 38

Cytotoxic or type II