Immune sys class 1

The diagram shows a lymphocyte. What is the arrow pointing to on the surface of the lymphocyte?

• molecules called antigens

• molecules called antibodies

The diagram shows a pathogen, what is the arrow pointing to on the surface of the pathogen?

• a molecule called an antigen

• a molecule called an antibody

The graph shows how the body responds by producing antibodies when it is infected by a pathogen. Suggest on which day range is there IgM produced

• Day 100 to 110

• Day 22 to 50

• Day 2 to 8

• Day 12 to 18

T cells are made initially made in the _____ and then educated in _______

• bone marrow
• spleen
• thymus
• tonsiles

What is the "big cell" that surrounds the pathogen and tells the T-cell what the antigens are?

• Macrophage

• RBC

• Memory T and B cells

• Antibodies

Thee large green structure with the antigen on its surface is a (an)

• antibody

• pathogen

• enzyme

• hormone

​ (a)   ​ ​produce ​ ​ (b)   and ​ (c)   engulf ​ (d)  

• lymphocytes
• antibodies
• phagocytes
• pathogens

Match the following terms that mean the same things.

• Y-shaped protein

• pathogen

• foreign invader

• antigen

• eat

• engulf

• medicine

• antibiotic

• chemical marker

• antibody

Antibody creation is ​ (a)   to the antigen.

Phagocytes attacking foreign invaders are a​ (b)   ​response.

• very specific
• non-specific
• not affected by
• not related
• feedback