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Adaptive immunity

Authored by Renad Mahmoud

Biology

12th Grade

Used 22+ times

Adaptive immunity
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9 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Antibodies are classified by size, location, and function, and which one of the following represents the most common type of immunoglobulin?

A) IgM

B) IgG

C) IgA

D) IgD

E) MHC

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The advantage of having memory cells in specific defenses is that

A) they remain in an active state, continuously producing antibodies

B) if exposed to an antigen a second time, they quickly become plasma cells

C) they prevent production of other proteins so that antibodies can be produced

D) they produce antibodies and can become phagocytic

E) they prevent viruses from entering the body a second time

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Which one of the following types of T cells is a critical component of the immune system because it stimulates and enhances the activity of other components of the immune system?

A) T suppressor cell

B) T memory cell

C) T helper cell

D) cytotoxic T cell

E) natural killer cells

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which one of the following is correct regarding the structure of an antibody?

A) An antibody is made up of two polypeptide chains linked by hydrogen bonds.

B) The four polypeptide chains that make up an antibody molecule are linked by disulfide bonds.

C) The constant regions of the polypeptides in an antibody form antigen-binding sites.

D) Only one polypeptide in an antibody has a constant region and a variable region.

E) The polypeptides making up an antibody are connected by hydrogen bonds.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Clonal selection implies that

A) brothers and sisters have similar immune responses.

B) antigens increase mitosis in specific lymphocytes.

C) only certain cells can produce interferon.

D) a B cell has multiple types of antigen receptors.

E) the body selects which antigens it will respond to.

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

For one person to produce over a million different antibody molecules could not possibly require over a million different genes. Instead, this variability is accounted for by which processes?

A) alternative splicing of exons after transcription

B) increased rate of mutation in the RNA molecules

C) DNA rearrangements followed by alternative splicing of the transcripts

D) DNA rearrangements in the thymus cells

E) crossing-over between the light and heavy chains of each antibody molecule during meiosis I

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which one of the following best explains why people get so many colds in their lifetime?

A) The immune system has a hard time identifying the viruses that cause the colds.

B) The viruses that cause these colds constantly produce new antibodies, which cause the symptoms.

C) These individuals do not produce enough white blood cells.

D) The viruses that cause colds evolve rapidly, which results in a change in their antigenic structure.

E) The B cells of these individuals destroy their T cells.

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