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Unit 4: Support and locomotion B2
Planning
Planning coming weeks
Quick recap last week
Basic 2: the structure of bones (10 min)
Demo practicum (20 min)
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Biologie
Middelbare school
vwo
Leerjaar 1
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15 slides
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interactive quizzes
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Items in this lesson
Planning
Planning coming weeks
Quick recap last week
Basic 2: the structure of bones (10 min)
Demo practicum (20 min)
Slide 1 - Slide
Planning coming weeks
Week
17 jan
B2 + B3
24 jan
B3 + B4
31 jan
Repetition + test
Slide 2 - Slide
Learning goals
You can describe the structure of bone tissue and cartilage tissue.
You can describe how the composition of the bones changes during a person’s life.
Slide 3 - Slide
What is not a function of the skeleton?
A
Gives support and gives shape
B
The skeleton helps us think
C
Protects organs
D
Helps is move together with muscles
Slide 4 - Quiz
The skeleton is a ...
A
organism
B
organsystem
C
organ
D
tissue
Slide 5 - Quiz
The cat is a ...
A
Plantigrade - walks on the soles of the feet
B
digitigrade - walks on the toes
C
unguligrades - walks on hooves
Slide 6 - Quiz
Bones and cartilage
The skeleton consists out of 2 types of tissue:
Bone and cartilage
But..
What are bones made of?
Slide 7 - Slide
Structure of bones
Bones exist out of
calcium phosphate
and
collagen
.
Calcium phosphate
makes the bone strong and rigid.
Collagen
makes the bone flexible
Slide 8 - Slide
Slide 9 - Slide
Changes of bone tissue
The skeleton of a baby consists mostly of cartilage tissue.
During growth, most of the cartilage changes to bone.
When you get older:
--> Amount of collagen decreases
--> amount of calcium phosphate increases.
Slide 10 - Slide
baby is flexible because they have a lot of collagen in their bones
Old people break bones easier because they have less collagen.
Based on what you've learned, make fitting text, include the word collagen
Based on what you've learned, make fitting text, include the word collagen
Slide 11 - Slide
Where do bones exist of?
A
Collagen and calcium phosphate
B
Cartilage and calcium phosphate
C
cartilage
D
collagen
Slide 12 - Quiz
Do the bones of older people have more collagen?
A
yes
B
no
Slide 13 - Quiz
Do the bones of baby's have more calcium phosphate?
A
yes
B
no
Slide 14 - Quiz
Demo practicum
We are going to look at the collagen and calcium phosphate in bones.
Slide 15 - Slide
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