(1 ) Natural acquired passive immunity includes (Points : 2) a) IgG molecules th

Question

(1 ) Natural acquired passive immunity includes (Points : 2)

a) IgG molecules that crossed the placenta, IgA from breast milk, and fungal spores from the birth canal.

b) IgG molecules that crossed the placenta, IgA from breast milk, and bacteria from the birth canal.

C)IgG molecules that crossed the placenta, IgA from breast milk, and viral RNA from the birth canal. only

D) IgG molecules that crossed the placenta and IgA from breast milk.

e) None of the above

(2) When you are talking about the immune system, the term oxidation refers to

a)macrophages secreting lactic acid.

b)macrophages building channel proteins.

c)the synthesis of molecules that cover our skin for extra protection.

d)the use of sugars to propel sperm along faster.

e)a way that antibodies can kill bacteria chemically.

(3) The second time Mary came into contact with a child with chicken pox her cells showed _____ by responding more quickly than the first time she was exposed.

a) BCR diversity

b) migration

c) histocompatibility

d) immunological memory

e) None of the above

(4) Cytotoxic T cells (Points : 2

a)are also known as natural killer lymphocytes.

b)are involved in killing cancer cells.

c)are the target cells of HIV.

d) None of the above

e) All of the above

Explanation / Answer

1) b) IgG molecules that crossed the placenta, IgA from breast milk, and bacteria from the birth canal.

2) e)a way that antibodies can kill bacteria chemically.

3) d) immunological memory

4) b)are involved in killing cancer cells.

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