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Lesson 6 (Tv2E): Diseases + Respiration in other animals
Breathing and respiration
1.6 respiration in other animals
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Biologie
Middelbare school
vwo
Leerjaar 2
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Lesson duration is:
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Breathing and respiration
1.6 respiration in other animals
Slide 1 - Slide
0
Slide 2 - Video
Effects of Smoking
Tar -> damages teeth and gums -> Causing decay teeth
Loss of smell due to damage nerve endings nose
Damaging cilia, which clean the air
Less oxygen uptake in the alveoli due to toxic carbon monoxide gass exchange instead of oxygen uptake
Restriction of the blood vessels and harm of the blood vesssel cells
Mutations in the DNA --> Cancer
The good news --> Recovery possible!
Slide 3 - Slide
Asthma
Inflammation of the airways
airways narrow and swell and produce extra mucus
Exact cause is unkown
Allergies
premature birth
smoking during pregnancy
Slide 4 - Slide
inhalators
-Relax the muscles -> widen up the airways
-Anti inflammatory substances stop the inflamation
Slide 5 - Slide
Breathing in other animals
Mammals
Amoeba
Worm
Fish
Insect
Slide 6 - Slide
Mammals
Where is the respiratory surface (RS)?
Lungs (alveoli)
How is the RS kept moist?
Mucus
Where does the organism get its oxygen from?
From the air
How does oxygen go from RS to cells?
Via the blood
How is the surface of the RS increased?
Lungs are composed of millions of tiny air sacs (alveoli)
Slide 7 - Slide
What is an Amoeba?
Single cell organism (Greek
amoibe
, means changing)
Can alter it's shape
Eats bacteria
Lives as parasite in animals or in water
Slide 8 - Slide
Amoeba
Where is the respiratory surface (RS)?
Cell membrane
How is the RS kept moist?
They live in water
Where does the organism get its oxygen from?
From the water
How does oxygen go from RS to cells?
Via diffusion into and out of the cytoplasm over the cell membrane
How is the surface of the RS increased?
Folds of the cell membrane
Slide 9 - Slide
Worm
Where is the respiratory surface (RS)?
Skin cells
How is the RS kept moist?
Mucus
Where does the organism get its oxygen from?
Air
How does oxygen go from RS to cells?
Diffusion between air and blood
How is the surface of the RS increased?
By ridges in the skin
Slide 10 - Slide
Fish
Where is the respiratory surface (RS)?
Gills
How is the RS kept moist?
They live in water
Where does the organism get its oxygen from?
From the water
How does oxygen go from RS to cells?
Gas exchange between the water and blood in the gills
How is the surface of the RS increased?
Gill arches and fine lamelles
Slide 11 - Slide
Insect
Where is the respiratory surface (RS)?
Spiracles (small holes in their abdomen)
How is the RS kept moist?
Not always moist
Where does the organism get its oxygen from?
Air
How does oxygen go from RS to cells?
By diffusion sometimes pumping air
How is the surface of the RS increased?
Many tubes within tubes
Slide 12 - Slide
HW for next lesson
Kerboodle review exercizes
Question 1 - 9 / page 76 -77
Last 10 min. Word game
Slide 13 - Slide
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