Lymphocytes

Question 1

Lymphoid cells

Answer 1

Lymphocytes, leukocytes that are formed in bone marrow as stem cells, work with the body’s orgnas to defend against antigens

Question 2

Antigen

Answer 2

Substance that the body regards as being foreign

Question 3

Maturation

Answer 3

Process of becoming mature

Question 4

Differentiation

Answer 4

Modified to perform a specific function

Question 5

Natural killer cells

Answer 5

Killing of cancer cells and cells infected by viruses

Question 6

B cells

Answer 6

B lymphocytes, specialized lymphocytes that produce antibodies

Question 7

B cells are most effective against

Answer 7

Viruses and bacteria that are circulating in the blood

Question 8

B cells are transformed into ____ when confronted w an anitgen that it is coded to destroy

Answer 8

Plasma cell

Question 9

T cells

Answer 9

Central role in cell-mediated immunity

Question 10

Cytokines

Answer 10

Group of proteins such as interferons and interleukins released by T cells, intracellular signals to begin immune response

Question 11

Interferons

Answer 11

Produced in response to the presence of antigens, particularly viruses or tumor cells, activate the immune system, fight viruses by slowing or stopping their multiplication and signal other cells to increase their defenses

Question 12

Interleukins

Answer 12

Directing B and T cells to divide and proliferate