Immune System

Question 1

Natural barriers that reduce risk of infection:

Answer 1

• Skin
• lashes
• lysozones = tears
• saliva
• stomach acid
• blood clothing
• inflammation.

Question 2

What are antibodies?

Answer 2

Proteins, which are specific to the antigens on a specific pathogen.

Question 3

2 types of cells are produced when B - lymphocytes are stimulated?

Answer 3

• Plasma cells & memory cells

Question 4

What is he purpose of antibodies forming antigen - antibody complex?

Answer 4

Makes the antigen inactive and clumps together the pathogen to increase the rate of phagocytosis.

Question 5

Name the two types of lymphocytes:

Answer 5

B-lymphocytes
T-lymphocytes

Question 6

Where do t-lymphocytes mature?

Answer 6

Thymus

Question 7

Where do b-lymphocytes mature?

Answer 7

Bone marrow