Question 1

What is the smallest unit of an antigen that is capable of binding with an antibody?

Accepted Answer

A)  MHC class I 
B)  An epitope 
C)  A paratope 
D)  MHC class II 
A)  MHC class I 
B)  An epitope 
C)  A paratope 
D)  MHC class II

Question 2

Which of the following cells release perforins to target abnormal cells?

Accepted Answer

A)  B cells 
B)  Macrophages 
C)  NK cells 
D)  TH cells 
A)  B cells 
B)  Macrophages 
C)  NK cells 
D)  TH cells

Question 3

Which portion of a T-cell receptor binds to an antigen?

Accepted Answer

A)  the constant region 
B)  the variable region 
C)  neither the constant region nor the variable region 
D)  both the constant region and the variable region 
A)  the constant region 
B)  the variable region 
C)  neither the constant region nor the variable region 
D)  both the constant region and the variable region

Question 4

Which of the following is true of antigens?

Accepted Answer

A)  They elicit an immune response. 
B)  They have a molecular weight of less than 3000. 
C)  They have a simple structure. 
D)  They are polypeptide chains, which have only one amino acid. 
A)  They elicit an immune response. 
B)  They have a molecular weight of less than 3000. 
C)  They have a simple structure. 
D)  They are polypeptide chains, which have only one amino acid.

Question 5

Which type of biomolecules are antibodies made of?

Accepted Answer

A)  glycoproteins 
B)  lipoproteins 
C)  glycerophospholipids 
D)  sphingolipids 
A)  glycoproteins 
B)  lipoproteins 
C)  glycerophospholipids 
D)  sphingolipids

Question 6

Which of the following is not a side effect of glucocorticoids?

Accepted Answer

A)  Diabetes 
B)  Osteoporosis 
C)  Skin atrophy 
D)  None, these are all side effects of glucocorticoids. 
A)  Diabetes 
B)  Osteoporosis 
C)  Skin atrophy 
D)  None, these are all side effects of glucocorticoids.

Question 7

Which class of immunoglobulins has the lowest concentration in the serum?

Accepted Answer

A)  IgA 
B)  IgD 
C)  IgE 
D)  IgM 
A)  IgA 
B)  IgD 
C)  IgE 
D)  IgM

Question 8

In which part of a phagocyte are antigens destroyed?

Accepted Answer

A)  in the mitochondria 
B)  in the cytoplasm 
C)  in the lysosomes 
D)  inside the nucleus 
A)  in the mitochondria 
B)  in the cytoplasm 
C)  in the lysosomes 
D)  inside the nucleus

Question 9

How do plasma cells respond to antigens in the blood?

Accepted Answer

A)  They directly attack the antigens. 
B)  They secrete soluble antibodies in the blood. 
C)  Both of these are responses of plasma cells. 
D)  Neither of these is a response of plasma cells. 
A)  They directly attack the antigens. 
B)  They secrete soluble antibodies in the blood. 
C)  Both of these are responses of plasma cells. 
D)  Neither of these is a response of plasma cells.

Question 10

Which of the following can be antigens?

Accepted Answer

A)  nucleic acids 
B)  polysaccharides 
C)  proteins 
D)  all of these 
A)  nucleic acids 
B)  polysaccharides 
C)  proteins 
D)  all of these

Question 11

Which of the following statements is true of the structure of immunoglobulins?

Accepted Answer

A)  Each immunoglobulin molecule is made of two polypeptide chains. 
B)  Each immunoglobulin molecule is made of four different polypeptide chains. 
C)  Each immunoglobulin molecule is made of four identical polypeptide chains. 
D)  Each immunoglobulin molecule is made of two identical light chains and two identical heavy chains. 
A)  Each immunoglobulin molecule is made of two polypeptide chains. 
B)  Each immunoglobulin molecule is made of four different polypeptide chains. 
C)  Each immunoglobulin molecule is made of four identical polypeptide chains. 
D)  Each immunoglobulin molecule is made of two identical light chains and two identical heavy chains.

Question 12

Which of the following is not a lymphoid organ?

Accepted Answer

A)  the spleen 
B)  the thymus 
C)  the thyroid 
D)  the tonsils 
A)  the spleen 
B)  the thymus 
C)  the thyroid 
D)  the tonsils

Question 13

Which of the following are the first cells in the blood that encounter an antigen?

Accepted Answer

A)  B cells 
B)  Dendritic cells 
C)  Macrophages 
D)  T cells 
A)  B cells 
B)  Dendritic cells 
C)  Macrophages 
D)  T cells

Question 14

Which of the following cells target and perforate the surfaces of abnormal cells?

Accepted Answer

A)  B cells 
B)  Macrophages 
C)  NK cells 
D)  T cells 
A)  B cells 
B)  Macrophages 
C)  NK cells 
D)  T cells

Question 15

What does "CD" stand for in the name of the molecule CD3?

Accepted Answer

A)  cell destroyer 
B)  cluster determinant 
C)  cluster disperser 
D)  compact dimer 
A)  cell destroyer 
B)  cluster determinant 
C)  cluster disperser 
D)  compact dimer

Question 16

Which of the following immune cells develop into plasma cells?

Accepted Answer

A)  B cells 
B)  Helper T cells 
C)  Macrophages 
D)  Memory T cells 
A)  B cells 
B)  Helper T cells 
C)  Macrophages 
D)  Memory T cells

Question 17

How do NK cells and Tc cells kill invading foreign cells?

Accepted Answer

A)  by engulfing and devouring them 
B)  by inhibiting protein synthesis in the foreign cells 
C)  by digesting their nuclear material 
D)  by punching holes in their membranes 
A)  by engulfing and devouring them 
B)  by inhibiting protein synthesis in the foreign cells 
C)  by digesting their nuclear material 
D)  by punching holes in their membranes

Question 18

Identify a difference between T-cell receptors and other immunoglobulins.

Accepted Answer

A)  Unlike other immunoglobulins, T-cell receptors do not have constant and variable regions. 
B)  Unlike other immunoglobulins, T-cell receptors respond to nucleic acid antigens. 
C)  Unlike other immunoglobulins, T-cell receptors cannot undergo somatic mutations. 
D)  Unlike other immunoglobulins, T-cell receptors are antigen specific. 
A)  Unlike other immunoglobulins, T-cell receptors do not have constant and variable regions. 
B)  Unlike other immunoglobulins, T-cell receptors respond to nucleic acid antigens. 
C)  Unlike other immunoglobulins, T-cell receptors cannot undergo somatic mutations. 
D)  Unlike other immunoglobulins, T-cell receptors are antigen specific.

Question 19

Which of the following molecules that are on the surface of HIV strongly bind to CD4 molecules?

Accepted Answer

A)  gp41 
B)  p24 capsid 
C)  gp120 
D)  p17 matrix 
A)  gp41 
B)  p24 capsid 
C)  gp120 
D)  p17 matrix

Question 20

Which of the following statements is true of innate immunity?

Accepted Answer

A)  It only includes physical barriers. 
B)  It is highly pathogen specific. 
C)  Both of these statements are true. 
D)  Neither of these statements is true. 
A)  It only includes physical barriers. 
B)  It is highly pathogen specific. 
C)  Both of these statements are true. 
D)  Neither of these statements is true.

Exam 30: Immunochemistry

What is the smallest unit of an antigen that is capable of binding with an antibody?

Which of the following cells release perforins to target abnormal cells?

Which portion of a T-cell receptor binds to an antigen?

Which of the following is true of antigens?

Which type of biomolecules are antibodies made of?

Which of the following is not a side effect of glucocorticoids?

Which class of immunoglobulins has the lowest concentration in the serum?

In which part of a phagocyte are antigens destroyed?

How do plasma cells respond to antigens in the blood?

Which of the following can be antigens?

Which of the following statements is true of the structure of immunoglobulins?

Which of the following is not a lymphoid organ?

Which of the following are the first cells in the blood that encounter an antigen?

Which of the following cells target and perforate the surfaces of abnormal cells?

What does "CD" stand for in the name of the molecule CD3?

Which of the following immune cells develop into plasma cells?

How do NK cells and Tc cells kill invading foreign cells?

Identify a difference between T-cell receptors and other immunoglobulins.

Which of the following molecules that are on the surface of HIV strongly bind to CD4 molecules?

Which of the following statements is true of innate immunity?

Matter, Energy, and Measurement

Atoms

Chemical Bonds

Chemical Reactions

Gases, Liquids, and Solids

Solutions and Colloids

Reaction Rates and Chemical Equilibrium

Acids and Bases

Nuclear Chemistry

Organic Chemistry

Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

Amines

Aldehydes and Ketones

Carboxylic Acids

Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

Lipids

Proteins

Enzymes

Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

Biosynthetic Pathways

Nutrition

Body Fluids

Filters

How do NK cells and T_c cells kill invading foreign cells?