6.3

Which of the following statements about antibodies is correct?

Antibodies are polypeptides.

Which term describes a molecule capable of triggering an immune response?

Antigen

What stimulates the production of antibodies?

Antigens

What is a possible explanation for why subsequent pregnancies could trigger an immune response?

Exposure to the Rh+ antigen in the first pregnancy triggered the development of antibodies that could attack the blood of a future Rh+ baby.

What are two effects of HIV on the immune system?

Reduction in antibody production and decrease in active lymphocytes

What does the nucleus of a human lymphocyte contain?

The whole genetic information for a human

What is the difference between the origin of type I and type II diabetes?

Type 1=caused by an autoimmune reaction, type 2=target cells fail to respond to insulin

Which factors related to mucous membranes protect the body against microbes?

production of lysozyme and trapping of microbes