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B Bones and Cartilage
Learnbeat unit:
Movement
B. Bones and cartilage
1 / 18
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Slide 1:
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Biologie
Middelbare school
vwo
Leerjaar 1
This lesson contains
18 slides
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interactive quizzes
and
text slides
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Lesson duration is:
30 min
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Items in this lesson
Learnbeat unit:
Movement
B. Bones and cartilage
Slide 1 - Slide
Skeleton
Slide 2 - Slide
Skeleton
Consist of 3 parts: head, torso, limbs
Has two different types of tissue:
- Bone tissue
(botweefsel)
- Cartilage tissue
(kraakbeenweefsel)
Slide 3 - Slide
Movement
§2 Bones & Cartilage
Slide 4 - Slide
Bones
Give strength, let us move and stand upright
Contain
calcium phosphate
and a bit of
collagen
Slide 5 - Slide
Cartilage
Firm, but very flexible.
Contains a lot of
collagen
Protects bones from damage and makes sure movement is possible.
Slide 6 - Slide
Bones and cartilage
Lesson 2
Slide 7 - Slide
Planning
1. Demonstration
2. Make 'Practical activity 2 (C + D)
3. Recap Bones and Cartilage (quiz)
4. Work on 'B Bones and Cartilage' 1, 2 and 3.
Done? Check your answers
Done? Make assignments 1,2,3, 5 and 8
of BS4.2 in malmberg
Slide 8 - Slide
What makes bone flexible?
A
collagen
B
calcium
C
cartilage
Slide 9 - Quiz
What substance makes bone strong?
A
collagen
B
calcium phosphate
C
cartilage
Slide 10 - Quiz
Which substance is mostly present in bone tissue
A
Calcium phosphate
B
Collagen
Slide 11 - Quiz
Which substance is mostly present in cartilage tissue
A
Calcium phosphate
B
Collagen
Slide 12 - Quiz
Bone tissue
Cartilage tissue
What makes cartilage tissue more flexible compared to bone tissue? Use the word extracellular material
Slide 13 - Slide
Cartilage tissue (kraakbeenweefsel):
- cellen in groepjes bij elkaar
- elastische tussencelstof
- vooral collageen
Bone tissue (botweefsel):
- cellen in kringen om bloedvaatjes
- harde tussencelstof
- vooral kalkzouten en collageen
Slide 14 - Slide
A change in bone tissue
When younger --> more collagen, less calcium phosphate in bones
When older --> more calcium phosphate, less collagen in bones
Welke grafiek is dan juist?
Slide 15 - Slide
comparing skeletons
The skeleton can tell us something about
-where an animal lives
- what it eats
- what it looked like in the past
Slide 16 - Slide
Protection
Sommige delen van het lichaam bieden bescherming.
Welke delen denk jij?
Schedel: klopt!
De schedel beschermt de hersenen
tegen botsingen, als een helm.
Nekwervels: klopt!
Ze beschermen de
zenuwen
van en naar de hersenen.
Borstkas: klopt!
Dit beschermt de zachte en weke
ingewanden
zoals het hart, de darmen en de longen. Anders zou alles uit je lichaam zakken! Jakkes!
Botten: nee
Dit geeft stevigheid aan het lichaam. de speieren zitten aan de botten vast, en zo kunnen de botten bewegen.
(Hoef)nagels: klopt!
De nagels beschermen de poten tegen beschadiging en verwonding.
Bij sommige dieren zijn de nagels zelfs een wapen!
Slide 17 - Slide
Get to work
Slide 18 - Slide
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