Microbiology and Immunity

Question 1

Coagulation

Answer 1

Formation of a blood clot

Question 2

What are Platelets used for in Body Defence against wounds?

Answer 2

Stick to damaged area of the body to help the blood clot

Question 3

What are Enzymes used for in Body Defence against wounds?

Answer 3

Released to help Blood Clot

Question 4

What are Fibrin used for in Body Defence against wounds?

Answer 4

Form a Mesh which traps red blood cells helping the blood to clot

Question 5

Foreign

Answer 5

Something which is not a part of the host organism

Question 6

Differences between Red blood cell and WHite Blood Cell?

Answer 6

Red Blood cell carries on through haemoglobin whereas white blood cells helps blood to clot

Question 7

What is an Antigen?

Answer 7

A protein which stimulates an immune response. They are Complementary i shape

Question 8

What are the Differences between Phagocytes and Lymphocytes?

Answer 8

Lymphocytes attach to the antigen and destructs Pathogen. The antigen causes enzymes to split open the pathogen’s cell membrane and also tags pathogens for phagocytes

Question 9

Phagocytes in Digestion

Answer 9

Phagocytes move towards the pathogen, binds to it, pushes a sleve of cytoplasm to surround it. It then engulfs it inside the vacuole and digestive enzymes are realesed to break pathogen down.

Question 10

How do antibodies destroy antigens

Answer 10

Neutralise pathogens as they act as antitoxins
Marks pathogens for phagocytes
Lumps pathogens together for mass destruction

Question 11

State three ways in which you can become immune to a disease

Answer 11

Specific shape for antibodies
Natural genes
Antibodies transfer –> immunification