13.2 Respiration

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Slide 1: Tekstslide
BiologieMiddelbare schoolvmbo t, mavo, havoLeerjaar 2

In deze les zitten 42 slides, met interactieve quizzen, tekstslides en 7 videos.

time-iconLesduur is: 50 min

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

Slide 42 - Link