Questions with Verified Answers
1. Dampen the activity of both T cells and B cells.
A) Interferon
B) Regulatory T cells C) APCs
C) Complement E) Helper T cells - ANSWER B
2. Present the double activation signal to T cells.
A) Interferon
B) Regulatory T cells C) APCs
C) Complement E) Helper T cells - ANSWER C
3. Which of the following is characteristic of antibodies?
A) incapable of being transferred from one person to another
B) three binding sites per antibody monomer
C) carbohydrate structure
D) composed of heavy and light polypeptide chains - ANSWER D
4. Which of the following is associated with passive immunity?
A) passage of IgG antibodies from a pregnant mother to her fetus B)
booster shot of vaccine
B) infusion of weakened viruses D) exposure to an antigen - ANSWER
A
5. Which of the following is not a type of T cell? A) regulatory B) cytotoxic
6. C) antigenic
7. D) helper - ANSWER C
,8. B lymphocytes develop immunocompetence in the ________.
A) thymus B) bone marrow C) spleen D) lymph nodes - ANSWER B
9. Which of the following is not a function of the inflammatory response?
A) prevents the spread of the injurious agent to nearby tissue
B) disposes of cellular debris and pathogens
C) sets the stage for repair processes
D) replaces injured tissues with connective tissue - ANSWER D
10.The redness and heat of an inflamed area are due to a local hyperemia
caused by ________.
A) production of complement and interferon B) vasoconstriction
B) phagocyte mobilization D) vasodilation - ANSWER D
11.The antibody molecule is held together by ________ bonds.
A) sodium B) hydrogen C) amino acid D) disulfide - ANSWER D
12.In clonal selection of B cells, which substance is responsible for determining
which cells will eventually become cloned?
A) complement B) interferon C) antigen D) antibody - ANSWER C
13.Which of the following statements regarding NK cells is a false or incorrect
statement?
A) NK cells attack cancer cells and virus-infected body cells.
B) NK cells attack cells that display abnormal MHC antigens.
C) NK cells are a type of neutrophil.
D) NK cells are present in the blood, spleen, lymph nodes, and red bone
marrow. - ANSWER C
14.The process whereby neutrophils and other white blood cells are attracted to
an inflammatory site is called ________.
, A) margination B) chemotaxis C) diapedesis D) phagocytosis -
ANSWER B
15.Small molecules that bind with self-proteins to produce antigenic substances
are called ________.
A) reagins B) antibodies C) haptens D) ions - ANSWER C
16.Which of the following is the correct sequence of events in phagocytosis?
A) chemotaxis, ingestion, digestion, adherence, killing
B) adherence, digestion, killing, ingestion, chemotaxis
C) chemotaxis, adherence, ingestion, digestion, killing
D) ingestion, adherence, chemotaxis, digestion, killing - ANSWER C
17.The only T cells that can directly attack and kill other cells are the
________. A) helper cells B) cytotoxic cells C) regulatory cells D) plasma
cells - ANSWER b
18.Small proteins secreted by virus-containing cells.
A) Interferon
B) Regulatory T cells C) APCs
C) Complement E) Helper T cells - ANSWER A
19.Major innate mechanism that mediates destruction of foreign substances in
the body.
A) Interferon
B) Regulatory T cells C) APCs
C) Complement E) Helper T cells - ANSWER D
20.Stimulate the proliferation of other lymphocytes.
A) Interferon
B) Regulatory T cells C) APCs