Comprehension activity

Which of the following is a physical barrier of the innate immune system?

• Antibodies

• Memories cells

• Mucous membrane

• Helper-T cells

Which of the following is not an antigen presenting cell?

• B-cell

• Macrophage

• Dendritic cell

• T cell

The following are the examples of leucocytes EXCEPT?

• Eusinophil

• T cells

• Basophil

• Macrophage

Which class of major histocompatibility complex (MHC) molecules is involved in presenting intracellular antigens to cytotoxic T cells?

• MHC I

• MHC II

• MHC III

• MHC IV

Which process involves the engulfing of antigens by a cell and their subsequent presentation on the cell's surface?

• Endocytosis

• Phagocytosis

• Exocytosis

• Pinocytosis

Draw the basic structure of an antibody

Antigens that infect the body cells and must be terminated by T cells directly can also be called as _______ antigens.

Which type of T cell is primarily activated when antigens are presented by MHC class II molecules?

• Cytotoxic T cell

• Helper T cell

• Memory T cell

• Regulatory T cell

Tonsils and Spleen are examples of ________ lymphoid organs.

• Primary

• Secondary

• Tertiary

• Quarternary

Antibodies are produced by?

• B cells

• T cells

• Macrophage

• Dendritic cells