BS 1 - Blood

Today's lesson
Start ch3: the circulatory system
- What is the circulatory system?
- §3.1 Blood and its parts

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Slide 1: Tekstslide
BiologieMiddelbare schoolvwoLeerjaar 2

In deze les zitten 19 slides, met interactieve quizzen, tekstslides en 1 video.

Onderdelen in deze les

Today's lesson
Start ch3: the circulatory system
- What is the circulatory system?
- §3.1 Blood and its parts

Slide 1 - Tekstslide

What does circulation mean? Ex. A teacher circulates the room answering the students questions.
To move around.
To move in a circle.
To move backwards.
To move up and down.

Slide 2 - Quizvraag

The circulatory system

A system of tubes that moves substances around your body. 

The heart muscle powers this movement.

Slide 3 - Tekstslide

What moves around in your body via the circulatory system?
cells, tissues, organs
eyes, ears, stomach
blood, food, oxygen
blood, nutrients, oxygen, CO2

Slide 4 - Quizvraag

Blood - What comes to mind?

Slide 5 - Woordweb

What do we know already?
  • Unit 1: Blood carries oxygen & CO2
  • Unit 2: Blood carries nutrients

Slide 6 - Tekstslide

  • Function: Blood transports everything your body needs
  • Ex. heat, nutrients, oxygen, CO2, waste products
  • Blood contains:
  1. Plasma: plasma proteins (ex. fibrinogen), water, dissolved substances 
  2. Solids: red and white blood cells, platelets

Slide 7 - Tekstslide

What is blood?

Slide 8 - Tekstslide

Red blood cells
  • Small round discs
  • No nucleus
  • Red pigment: haemoglobin
  • Function: absorb and release oxygen

Slide 9 - Tekstslide

White blood cells
  •  Function: destroy pathogens (bacteria) 
  • Do have a nucleus
  • No fixed shape
  • Can squeeze through openings

Pus: Dead WBC and the bacteria they killed

Slide 10 - Tekstslide

  • Not cells 
  • Broken parts of cells
  • Function: clotting 
Clotting inside blood vessels is called thrombosis

Slide 11 - Tekstslide

Read 3.1 Blood
Make assignment 1 -4 and 6 - 9

Not finished? Homework!


Slide 12 - Tekstslide

Slide 13 - Video

What is the function of the red blood cell (RBC)?

Slide 14 - Open vraag

Why do we have white blood cells?
To protect us from suffocating
To protect us from bleeding out
To protect us from the cold
To protect us from pathogens

Slide 15 - Quizvraag

Recap - what was the lesson about?
1. The circulatory system
2. Blood and it's parts
         - red blood cells
         - blood plasma
         - white blood cells

Slide 16 - Tekstslide

What did you learn today?

Slide 17 - Open vraag

What questions do you still have about blood?

Slide 18 - Open vraag

Read 3.1 Blood
Make 1 t/m 4 & 5 t/m 9
 Extra: 10

Slide 19 - Tekstslide