IV. Give the synonyms:

site	able
to induce	to gather
to eliminate	to try
capable	place
to attempt	to stamp out
to congregate	to cause

V. Give the antonyms

destruction	healthy
to join	to remember
constituent	creation
capable	slower
harmful	whole
to protect	incapable
including	to divide
health	useful
to forget	excluding
quicker	to invade

VI. Match the definitions:

to induce	to go to by force in order to conquer;
to attempt	the act of destroying or the state of being destroyed;
to counteract	to cause to happen (occur);
constituent	to cause to begin;
marrow	to oppose & infective by contrary action;
congragate	a component part
to engulf	to make an effort;
to invade	the soft material that fills bone cavities;
destruction	to enclose completely;
to initiate	to come or to bring together

VII. Read and translate the text

VIII. Answer the questions

What is called immunogen?

What is called antigen?

What is antibody?

What plays a special part in the immune system?

What is a complement? What’s its function?

What are phagocytes?

What is called phagocytosis?

What is called phagocytosis?

What is the function of WBC?

How are WBCs act in case of injury?

What substances are phagocytic?

What does pus consist of?

What types of WBCs of can you name?

IX. Complete the sentences:

Any substances that is capable of ... an immune response is called ... .

Any foreign substance that ... the body to produce antibodies which attempt ... that foreign substance is called ... .

Antibody combines with an antigen and ... it.

One of the complement ... parts ... antibodies molecules and ... the destruction of the cells, containing antigens against which these antibodies have been ... .

The ... of harmful material by phagocytes is called ... .

White blood cells help to ... .

When the body is injured or infected WBCs pass through the walls of the capillary blood vessels and ... at the ... of injury or infection.

Pus consists of ... .

Immune response is usually carried out by ... ... .