Immunity, Nervous System, Thermoregulation, Hormones

Question 1

What are the two functions of blood clotting?

Answer 1

• prevent pathogens entering the body
• prevent blood loss

Question 2

What are pathogens

Answer 2

A disease causing organism, that stimulates an immune response.

Question 3

How do vaccinations result in the manufacturing of memory cells.

Answer 3

Vaccinations enable antibody-produced memory cells to be produced, faster and stronger to get rid of pathogens at a faster rate.

Question 4

what is the functions of platelets

Answer 4

release enzymes and clotting blood

Question 5

How can pathogens cause disease?

Answer 5

Physically damaging cells

Producing toxins which damage cells

Question 6

What is the difference between a white and a red blood cell?

Answer 6

A white blood cell fights against diseases, have a nucleus, bigger.
A red blood cell is biconcave shape, carry oxygen to respire cells, no nucleus.

Question 7

How does blood clotting work?

Answer 7

Blood vessel wall damaged

Collagen exposed

Platelets

Release enzyme and clotting factors

Fibrous protein fibrin

Blood cells trapped

Clot (scab)

Question 8

how can the immune system recognise a pathogen faster

Answer 8

the use of memory cells help the immune system identify the pathogen faster and kill it

Question 8

What are the two types of white blood cell

Answer 8

lymphocytes and phagocytes

Question 8

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Question 9

how to answer comment on question

Answer 9

S-
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