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13.2 Respiration
1 / 42
volgende
Slide 1:
Tekstslide
Biologie
Middelbare school
vmbo t, mavo, havo
Leerjaar 2
In deze les zitten
42 slides
, met
interactieve quizzen
,
tekstslides
en
7 videos
.
Lesduur is:
50 min
Start les
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Deel
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Onderdelen in deze les
Slide 1 - Tekstslide
Planning
- Welcome!
- Learning goals
- Breathing insects (+ quiz questions)
- Fish breathing (+ quiz questions)
- Work independently
- To block
This chapter
ST CH13
BT CH13 +CH14 in testweek
Log in to LessonUp!
Are you logged in?
Turn your laptop around!
(the screen is then facing the board).
Slide 2 - Tekstslide
13.2 Respiration (part 1)
You will learn how insects, fish, and plants breathe.
Slide 3 - Tekstslide
Where are a wasp's respiratory organs located?
A
Head
B
Thorax
C
Whole body
Slide 4 - Quizvraag
Red blood cells release ?
? attaches to red blood cells
We call this ? in the lungs
Oxygen rich blood is being transported to all of the ?
Carbon dioxide leaves the body through the ?
Oxygen
Lungs
Carbon dioxide
Body parts
Gas exchange
Slide 5 - Sleepvraag
What other forms of breathing are there besides the lungs?
Slide 6 - Open vraag
What is the respiratory (breathing) system of an insect called?
A
lung
B
gill
C
tracheae
D
stomach
Slide 7 - Quizvraag
Insects
Tracheae
= breathing tubes within an insect.
Spiracles
= holes on the sides of an insect’s body where air enters and leaves
Breathing
Oxygen enters the trachea and carbon dioxide leaves the trachea as the abdomen becomes larger and smaller.
(e
Slide 8 - Tekstslide
Spiracles enlarged
Slide 9 - Tekstslide
Diffusion
Slide 10 - Tekstslide
Diffusion
substances flow from an area of high concentration to an area of low concentration, until an equilibrium is reached
Oxygen
passes from the air in a trachea to the cytoplasm of a cell by
diffusion.
Carbon dioxide
in insect cells enters the trachea by diffusion
Slide 11 - Tekstslide
Slide 12 - Video
Trachea are:
A
respiratory vessels
B
tubes with air
C
vessels with air
D
holes
Slide 13 - Quizvraag
How do fish breathe?
A
with tracheae
B
with lungs
C
with gills
D
they don't
Slide 14 - Quizvraag
Fish
Gills
= breathing organs of fish
Gill arch
Gill filament
Lamellae
= thin filaments containing capillaries
Oxygen
goes to the blood in the gill lamellae.
Carbon dioxide
goes to the water that flows along the gill lamellae.
Slide 15 - Tekstslide
Countercurrent exchange system
exchange of substances between two flowing liquids or gases, such as oxygen and carbon dioxide, flowing in opposite directions to each other
Slide 16 - Tekstslide
What?
Make: 13.2 assignment 2-11
How?
In your (online) book. You may whisper with your neighbour.
Help?
Ask your neighbour. Still need help? Raise your hand.
Time?
15 minutes
Finished?
Check your answers with teams!
Yield
Well done! No homework left. You are now allowed to read or work on another subject.
Slide 17 - Tekstslide
Slide 18 - Tekstslide
Planning
- Welcome!
- Learning goals
- Instruction
- Work independently
- To block
This chapter
ST CH13
BT CH13 +CH14 in testweek
Log in to LessonUp!
Are you logged in?
Turn your laptop around!
(the screen is then facing the board).
Slide 19 - Tekstslide
13.2 Respiration (part 2)
You will learn how plants breathe
You can explain that some single-celled organisms can live without oxygen (deeper).
Slide 20 - Tekstslide
Quiz
Max 30 sec per question
Slide 21 - Tekstslide
A wasp often makes movements with its abdomen, why does it make these movements.
A
Because he has too much energy
B
That's how he keeps his enemies at bay
C
He feels itchy
D
To breathe
Slide 22 - Quizvraag
In this animal, gas exchange takes place via the gills.
A
True
B
False
Slide 23 - Quizvraag
Carbon dioxide+ water (+energy) -> glucose + oxygen
This is the formula of..
A
Respiration
B
Photosynthesis
Slide 24 - Quizvraag
What gas is needed for respiration?
Slide 25 - Open vraag
Slide 26 - Video
Slide 27 - Video
In this animal (dolphin species), gas exchange takes place via the gills
A
True
B
False
Slide 28 - Quizvraag
In which part of the gills does the countercurrent principle take place?
A
Gill arch
B
Gill cover
C
Lamellae
D
None of these answers are correct
Slide 29 - Quizvraag
Slide 30 - Video
Diffusion
Slide 31 - Tekstslide
Plants
Gas exchange
takes place due to
diffusion.
Stomata =
small openings in the leaf through which gases can pass.
Slide 32 - Tekstslide
Slide 33 - Video
Slide 34 - Video
During the day (photosynthesis + respiration)
Oxygen concentration
in the leaf is
higher
than the surrounding air.
Oxygen goes out.
Concentration of carbon dioxide
in the leaf
lower
than the surrounding air.
Carbon dioxide goes in.
At night (respiration)
No oxygen is produced.
Stomata are closed.
Plant uses oxygen between the cells.
Slide 35 - Tekstslide
Slide 36 - Video
+
+
-->
Fotosynthese:
+
.........
........
.........
..........
........
Slide 37 - Sleepvraag
Do all organisms need oxygen?
Intestinal flora
= bacteria that feed on undigested nutrients in your large intestine
Decomposing bacteria
= bacteria that feed on dead remains in oxygen-poor circumstances, produce methane gas and other, smelly gases
Slide 38 - Tekstslide
Do all organisms need oxygen?
Yeasts
= single-celled fungi that can survive in environments with or without oxygen.
oxygen
: glucose --> energy
no oxygen
: glucose --> alcohol + carbon dioxide (
alcoholic fermentation
)
Slide 39 - Tekstslide
lactic acid bacteria
= bacteria that can survive in environments with or without oxygen.
Oxygen
: glucose --> energy
No oxygen:
glucose --> energy + lactic acid (
lactic fermentation)
Slide 40 - Tekstslide
What?
Make: 5, 7, 9-11, 13-19
How?
In your book. You are allowed to whisper.
Help?
Discuss with your neighbour of raise your hand.
Time?
15 minutes
Finished?
Check your answers!
Slide 41 - Tekstslide
biologiepagina.nl
Slide 42 - Link
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