Lymphocyte Education Refers To Ensuring That T Cells

Question: Some immunocompetent cells will never encounter an antigen to which they can bind and therefore will never be called to service in our lifetime.

Answer: true

Question: Which of the following is true of antigens?

Answer: Antigens are substances that activate the adaptive immune response.

Question: Which of the following is true of incomplete antigens (haptens)?

Answer: Incomplete antigens are only immunogenic when attached to protein carriers.

Question: Small molecules that bind with self-proteins to produce antigenic substances are called ________.

Answer: haptens

Question: Which of the statements below does NOT describe antigens?

Answer: Antigens only come from microbes.

Question: Which of the following is a characteristic of complete antigens?

Answer: reactivity with an antibody

Question: Select the correct statement about antigens.

Answer: One antigen may have many different antigenic determinants and may therefore cause the formation of more than one antibody.

Question: The nucleotide sequence within the genes that produce B cell receptor and antibodies are reshuffled by a process called somatic recombination. This produces the huge variability in antibody types.

Answer: true

Question: Without the positive selection process in lymphocyte maturation ________.

Answer: T cells would not be able to properly bind to APC’s and therefore not be activated by them

Question: Lymphocyte “education” refers to ensuring that T cells _______.

Answer: that do not recognize self-MHC proteins undergo apoptosis