Filters
Question type

Study Flashcards

B cells bind with HLA self-antigens.

Correct Answer

verifed

verified

The tremendous diversity of antibodies is made possible by genetic recombination coupled with somatic mutation during lymphocyte development.

Correct Answer

verifed

verified

Which of the following concerning neutrophils is INCORRECT?


A) Nuetrophils are produced only in lymph nodes.
B) Nuetrophils can perform phagocytosis.
C) Nuetrophils can perform diapedesis.
D) Nuetrophils can exhibit amoeboid movement.

Correct Answer

verifed

verified

Which statement is correct for B lymphocytes?


A) They are responsible for antibody-mediated immunity.
B) They are activated by thymosin.
C) They mature and differentiate into macrophages.
D) They bind with foreign antigen in association with self-antigen.

Correct Answer

verifed

verified

A(n)____________________ is a disease-producing organism.

Correct Answer

verifed

verified

Which of the following is NOT secreted by helper T cells?


A) interleukin 2
B) Perforin
C) macrophage-migration inhibition factor
D) B-cell growth factor

Correct Answer

verifed

verified

Saliva is destructive to bacteria because it is highly acidic.

Correct Answer

verifed

verified

It's thought that fever may be beneficial to fighting an infection because it reduces the availability of ____________________,thus reducing bacterial growth.

Correct Answer

verifed

verified

Indicate which type of T cell is being described by using the answer code (options may be used more than once or not at all) : -recognize class II MHC glycoproteins


A) applies to cytotoxic T cells
B) applies to helper T cells
C) applies to suppressor T cells
D) applies to both helper T and suppressor T cells
E) applies to all three types of T cells

Correct Answer

verifed

verified

A given allergen can activate a B cell or T cell.

Correct Answer

verifed

verified

Which statement concerning cancer cells is INCORRECT?


A) Cancer cells arise only when multiple independent mutations occur within the same cell.
B) Cancer cells lack the ability to perform the specialized functions of the normal cell type from which they mutated.
C) The body has no means by which to defend against cancer cells.
D) Cancer cells usually do not adhere well to neighbouring cells, so some of them may break away from the parent tumour.

Correct Answer

verifed

verified

Indicate whether the characteristic applies to active immunity or passive immunity by using the answer code (options may be used more than once or not at all) : -exposure to antigen required for immunity to develop


A) applies to active immunity
B) applies to passive immunity
C) applies to both active and passive immunity

Correct Answer

verifed

verified

What is a large,complex molecule that triggers a specific immune response against itself when it gains entry into the body?


A) interferon
B) antigen
C) complement
D) opsonin

Correct Answer

verifed

verified

The immune system functions entirely independently of the body's two major control systems: the nervous and endocrine systems.

Correct Answer

verifed

verified

The secondary immune response can be longer and more powerful than the primary immune response.

Correct Answer

verifed

verified

Specific immune responses are selectively targeted against particular foreign material to which the body has previously been exposed.

Correct Answer

verifed

verified

MATCHING Indicate the characteristics that apply to bacteria and viruses by using the answer code (options may be used more than once or not at all) : -can transform normal host cells into cancer cells


A) pertains to bacteria
B) pertains to viruses

Correct Answer

verifed

verified

Which of the following is correct for cytotoxic T cells?


A) They can cause death of an infected host cell by releasing granzymes.
B) They secrete B-cell growth factor and T-cell growth factor.
C) They confer greater phagocytic properties on macrophages, converting them into angry macrophages.
D) They bind with class II MHC glycoproteins.

Correct Answer

verifed

verified

Indicate the immune by using the following answer code. -allergic response mediated by IgE


A) serum sickness
B) immediate hypersensitivity
C) acquired immune deficiency syndrome
D) delayed hypersensitivity
E) immune-complex disease
F) autoimmune disease
G) severe combined immunodeficiency

Correct Answer

verifed

verified

Which occurrence is NOT characteristic of the inflammation response?


A) increased capillary permeability
B) increased macrophage activity
C) localized vasodilation
D) decreased phagocytic activity

Correct Answer

verifed

verified

Showing 161 - 180 of 260

Related Exams

Show Answer