B5 U3 2HVTTO

• Biologie
• Middelbare school
• havo, vwo
• Leerjaar 2

B5 The immune system

• Jacket in your locker
• Put your things on your desk

       Laptop/Book

       Notebook, pencil case

• Bag on the floor
  
• Read pages 211-215

Lessongoals

• You can describe how antibodies protect against infection
• You can describe how immunity is created
• You can describe what happens in the case of an allergic reaction

Secret Student

This lesson, I have randomly picked someone to be the secret student.

I pay special attention to:

• Your use of English
• Your participation in the lesson

At the end I will reveal the secret student, If I can give them positive feedback, they also earn 1/3 +0,5 OR +1 cm² cheat sheet.

Wheel of homework

Go to Lessonup.app and use this code

Reward

Penalty

Rewards

• +1 cm2 cheatsheet = you get to make a cheatsheet for a test. This starts being 1 by 1 cm. Everytime you earn this it gets 1 cm bigger to a max of 4 by 4 cm.
• 1/3 +0.5 = If you earn this 3 times you get to add 0,5 to one of your biology marks.
• Snitch = You can pick a classmate who also is checked for homework, you earn two V's (having 3 earns you a 1/3 +0,5)
• Too bad = You only get one V
  

penalties

• 45 min extra worktime = you need to come after school and do homework, this will last for 45 min or until the task is done
• Coloringpage = You get to pick a coloringpage, You need to color it and perform tasks that might be on it. You need to hand it in during the next lesson, If you don't you get 2 marks.
• 2/1 marks = a mark is an X, if you get 3 of these you will automaticly earn the 45 min extra worktime.
• Snitch = You can pick a classmate who also is checked for homework
• Lucky! = You don't get a penalty

Where in the body does CO2 go INTO the blood

1. Lungs
2. Heart
3. Intestines
4. All organs

Where in the body does O2 go INTO the blood?

1. Lungs
2. Heart
3. Intestines
4. All organs

Where in the body do nutrients go INTO the blood?

1. Lungs
2. Heart
3. Intestines
4. All organs

Where in the body does water go INTO the blood?

1. Lungs
2. Heart
3. Intestines
4. All organs

Where in the body is O2 RELEASED from the blood?

1. Lungs
2. Heart
3. Intestines
4. All organs

What part of the blood is involved in killing pathogens?

1. White blood cells
2. Red blood cells
3. Platelets
4. Blood plasma

Foreign bodies

Substances that do not belong in our body : exogenous/foreign bodies

• Pathogens = bacteria, viruses, parasites
• Blood/organs from a donor
• Poison

Antigens

Cells, bacteria en viruses are covered with antigens.

Antigens = proteins on the outside of a cell

Cells can recognize each other using antigens.

If your body detects antigens from foreign bodies it will start an immune reaction

Immune reaction

Pathogens entering your body = Infection

White blood cells will fight the pathogens:

• Encapsulating (= eating) them 
• Making antibodies

Antibodies

• White blood cells make antibodies
• Antibodies fit (like puzzle pieces) on antigens
• Each antigen has its own antibody
• Pathogens covered in antibodies are helpless, they die or are eaten by white blood cells.

Antibodies doing their job

Immunity

Immune = body 'knows' pathogen, It is quickly killed. You don't get ill.

Natural

Pathogen enters your body.

Body 'learns' how to make antibodies

Artificial

Using a vaccine containing a dead/weakened pathogen or bit of DNA/RNA

Body safely 'learns' how to make antibodies

How much use would a vaccine against .... have
Flu

1. It's impossible to make this vaccine
2. The vaccine would have no effect
3. You become immune for a time
4. You become immune for always

How much use would a vaccine against .... have
Autism

1. It's impossible to make this vaccine
2. The vaccine would have no effect
3. You become immune for a time
4. You become immune for always

How much use would a vaccine against .... have
Polio (paralysis)

1. It's impossible to make this vaccine
2. The vaccine would have no effect
3. You become immune for a time
4. You become immune for always

How much use would a vaccine against .... have
chickenpox (=waterpokken)

1. It's impossible to make this vaccine
2. The vaccine would have no effect
3. You become immune for a time
4. You become immune for always

Everyone must vaccinate their kids

Strongly disagree

Disagree

Agree

Strongly agree

What you should do: U3 B5

• Pages  211-218
• Asgmt  1-9, 5c 

OR challenge

• Asgmt 4-11, 5c

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zs = Working in Silence

• No asking questions
• Silent, don't disturb anyone
  
• Stay at your  desk

What you should do: U3 B5

• Pages 211-218
• Asgmt 1-9, 5c

OR challenge

• Asgmt 4-11, 5c

Done with the above?

• Work on the next chapter(s)
• Learn for the test 
• Make other homework
• Read a book

Zw = Working with whispering

• Teacher is available for questions
• Only whisper with the student next to you
• Stay at your  desk

Secret Student

The secret student was .......

I paid special attention to:

• Your use of English
• Your participation in the lesson

If I can give them positive feedback, 

they also earn 1/3 +0,5 OR +1 cm² cheat sheet.

Tidy Duty

3 people each lesson

• Desks: empty and straight
• Chairs:  underneath the desks OR end of day: on the desks
• Floor: no rubbish