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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BiologieMiddelbare schoolvwoLeerjaar 2

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

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1.2 Gas exchange and respiration
what is air?
what happens during gas exchange?
what is diffusion?

Slide 1 - Tekstslide

Respiratory system
Take a starter sheet!
timer
7:00

Slide 2 - Tekstslide

which compound isn't part of the air we breathe?
A
oxygen
B
nitrogen
C
carbon dioxide
D
helium

Slide 3 - Quizvraag

what is air?
a mixture of....
oxygen, carbon dioxide, nitrogen and water vapour

what happens to these gasses?

Slide 4 - Tekstslide

which gas isn't used in our body?
A
carbon dioxide
B
oxygen
C
nitrogen
D
water vapour

Slide 5 - Quizvraag

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 - Tekstslide

finish the sentence...
lime water is an indicator for.............

Slide 7 - Open vraag

homework

 study pages 13, 14, 15 (only gas exchange) do excercises 9, 10, 15, 17, 18, 19

Slide 8 - Tekstslide

Slide 9 - Tekstslide

diffusion

Slide 10 - Tekstslide

Slide 11 - Tekstslide

explain the meaning of diffusion in your own words

Slide 12 - Open vraag

In diffusion a substance moves from ...
A
a high to a low concentration
B
a low to a high concentration

Slide 13 - Quizvraag

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 - Quizvraag

page 16 talking point
fill in the correct answers.

Slide 15 - Tekstslide

experiment 16 page 13 wb
we read the experiment together
we do the experiment in groups of four
we discuss your results

Slide 16 - Tekstslide

Slide 17 - Video

what is osmosis?

Slide 18 - Open vraag

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 - Tekstslide