Lesson 6: The immune system

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

Get ready: 

-LessonUp

-Scrum groups

-Notes

Blood and Circulation 

Chapter 6 (kerboodle)

p78 - 91

Lesson 6: Immune system and
gass exchange

Stand up! Sprint 3

All tasks divided? 

Are their any problems?

What do you have ready for the team?

What are you going to do for the team?

Deadline of sprint 2 = today!

Capillaries

• Smallest blood vessels
• Very thin walls
• Large surface area
  
  
• Easy for gass exchange

Leukemia

-blood cancer

-high number of abnormal blood cells

AIDS (caused by HIV)

-HIV is an STD (sexually transmittable disease)

-Kills a type of white blood cells

-less able to fight infections -> AIDS

'acquired immune deficiency syndrome'

Anemia (bloed armoede)

-lower amount of red blood cells

-less oxygen can be transported

-treatment -> blood transfusion

Haemophilia

• Person cannot make the chemicals involved in blood clotting
• This person can bleed to death easily

Antigens:

• Antigens are like the passport of a cell. This is how your body knows if a cell does or does not belong in your body.
  
• Antigens are proteins that sit on the cell wall/cell membrane of all cells in nature.

Antibodies:

• Your cells produce these to fit the antigens and so attack the pathogens. 
• Stick to antigens
• Make pathogens stick together
• Stop reproduction 
• Work as a gps

Blood types

I have blood type B can I receive blood from a person with blood type AB?

1. Yes
2. No

I have blood type B can I receive blood from a person with blood type o?

1. Yes
2. No

Start working on sprint 3!