Question

11.) Antibodies can bind to and coat bacteria which stimulates cellular phagocytosis by ___________. This process is called _____________.

neutrophils and macrophages; cytolysis

mast cells and basophils; cytolysis

dendritic cells and eosinophils; opsonization

dendritic cells and macrophages; opsonization

basophils and macrophages; opsonization

12.) One characteristic of the adaptive immune response is specificity. This means that

the immune response is identical no matter how many times the antigen is presented .

the immune response is carried on by a specific group of cells of the immune system.

the immune response is more rapid and robust with each exposure to the antigen.

the immune response is directed against a particular pathogen.

the immune response starts in defined organs in the body.

13.) Newborns can acquire __________ immunity through breast milk.

innate

specific

active

passive

14.) Most naïve, immunocompetent T cells wait to encounter foreign antigens in

the central nervous system

the bone marrow.

the thymus.

the skin.

secondary lymph tissues.

15.) Helper T (T_H) cells recognize non-self antigens only when they are bound to a

basophil.

major histocompatibility complex I (MHC-I) protein.

natural killer cell.

major histocompatibility complex II (MHC-II) protein.

hapten.

Answer 1

11. Answer: Option D is correct
Explanation:
Dendritic cells and macrophages are better phagocytes.
Opsonization = Tagging foreign particles for phagocytosis

12. Answer: Option D is correct
Explanation:
Specificity of the immune system: The immune system produces different antibodies for different epitopes
i.e. the response is specific for each antigen

13. Answer: Option D is correct
Explanation:
Breast milk provides passive immunity to newly-born individuals.
i.e. antibodies are directly passed on to the child from the mother.