Question

which cells are responsible for producing antibodies in the immune system?
natural killer cells
t cells
b cells
macrophages
question 6 (1 point)
which of the following is not a component of the innate immune system?
skin
natural killer cells
macrophages
antibodies

Explanation:

• For the first question: B cells are the ones that produce antibodies. Natural Killer cells are for cell - mediated cytotoxicity. T cells are involved in cell - mediated immunity (like helper T cells and cytotoxic T cells). Macrophages are phagocytic cells.
• For the second question: The innate immune system includes physical barriers (like skin), certain immune cells (Natural Killer Cells, Macrophages). Antibodies are part of the adaptive immune system.

Answer:

1. C. B cells
2. D. Antibodies