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1.2 gas exchange and respiration
1.2 Gas exchange and respiration
what is air?
what happens during gas exchange?
what is diffusion?
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Biologie
Middelbare school
vwo
Leerjaar 2
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1.2 Gas exchange and respiration
what is air?
what happens during gas exchange?
what is diffusion?
Slide 1 - Diapositive
Respiratory system
Take a starter sheet!
timer
7:00
Slide 2 - Diapositive
which compound isn't part of the air we breathe?
A
oxygen
B
nitrogen
C
carbon dioxide
D
helium
Slide 3 - Quiz
what is air?
a mixture of....
oxygen, carbon dioxide, nitrogen and water vapour
what happens to these gasses?
Slide 4 - Diapositive
which gas isn't used in our body?
A
carbon dioxide
B
oxygen
C
nitrogen
D
water vapour
Slide 5 - Quiz
cellular respiration
glucose + oxygen => water vapour + carbon dioxide + energy
C6H12O6 + 6 O2 => 6 CO2 + 6 H2O + energy
Explain the percentages on page 13. Why do the change during in/exhaling
Slide 6 - Diapositive
finish the sentence...
lime water is an indicator for.............
Slide 7 - Question ouverte
homework
study pages 13, 14, 15 (only gas exchange) do excercises 9, 10, 15, 17, 18, 19
Slide 8 - Diapositive
Slide 9 - Diapositive
diffusion
Slide 10 - Diapositive
Slide 11 - Diapositive
explain the meaning of diffusion in your own words
Slide 12 - Question ouverte
In diffusion a substance moves from ...
A
a high to a low concentration
B
a low to a high concentration
Slide 13 - Quiz
Which change would not speed up diffusion in an animal cell?
A
Make the membrane thinner
B
Move the blood supply closer to the cell
C
Make the cell rounder
D
Increase the concentration gradient
Slide 14 - Quiz
page 16 talking point
fill in the correct answers.
Slide 15 - Diapositive
experiment 16 page 13 wb
we read the experiment together
we do the experiment in groups of four
we discuss your results
Slide 16 - Diapositive
Slide 17 - Vidéo
what is osmosis?
Slide 18 - Question ouverte
homework
day 1: study pages 15,16,17
do excercises 11,12,13,14
day 2: study 1.3 do excercises 20,21,22,23,24
Slide 19 - Diapositive
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