Combustion and breathing

Photosynthesis
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Slide 1: Slide
BiologieMiddelbare schoolvwoLeerjaar 2

This lesson contains 17 slides, with interactive quizzes, text slides and 1 video.

time-iconLesson duration is: 30 min

Items in this lesson

Photosynthesis

Slide 1 - Slide

Glucose
Water
CO2
Oxygen

Slide 2 - Drag question

Combustion
Combustion is another name for burning.

In a combustion reaction, a fuel is burned and it reacts with oxygen (gas) to release energy.

Take for example the candle. 
The wax is the fuel. Burning the fuel (you need Oxygen for this) creates energy which is released in the form of heat and light.

Slide 3 - Slide

When the fuel is burned, it disappears and other substances appear in its place. 

The substances produced by combustion are called combustion products. Sometimes also referred to as waste products (afvalstoffen).

Look at the candle again. You can see two black arrows going away from the flame. The arrows stand for the combustion products, in this case: Carbon dioxide (gas) + steam (water).

Slide 4 - Slide

Slide 5 - Video

1) What does combustion mean?
2) What does it do?
A
1) Burning, 2) create energy
B
1) Burning, 2) create Oxygen
C
1)Heat, 2) create energy
D
1) Energy, 2) create Carbon dioxide

Slide 6 - Quiz

Make the formula of combustion in the candle.
Carbon Dioxide
Water
Oxygen
Energy
Fuel

Slide 7 - Drag question

What are the combustion products of the combustion of a candle?
A
Carbon dioxide and Oxygen
B
Oxygen and steam
C
Steam and Carbon dioxide
D
Carbon dioxide and energy

Slide 8 - Quiz

Soooo... what exactly does this have to do with our respiratory system?
At this point you know:
  • What combustion is and how it creates energy,
  • What combustion products are,
  • What an indicator is.
(if you at this point do not know any of the above, 
read the slides again!)

The next slides will show you how combustion and our 
respiratory system are connected!





Slide 9 - Slide

Respiration
A kind of combustion also happens in your body. The combustion in your body goes much slower than in a candle and it does not use fire. 

This combustion - called respiration - takes place in every single cell in your body. 
This goes on day and night, it never stops. Without respiration a cell dies.

Respiration happens in every living cell in every living organism.

Slide 10 - Slide

Energy
Our body uses a lot of energy to:
  •  Keep our body temperature at 37 degrees, 
  •  to move, 
  •  to grow, 
  •  to keep our organs working etc. 

Respiration creates the energy we need to do the above. 



Slide 11 - Slide

What happens during respiration?
Respiration can happen when we have Glucose (fuel)
and Oxygen. 

When breath out, you are getting rid of Carbon dioxide. 
You also lose some water when you exhale.
--> waste products.

Respiration produces the energy we need.


Cell respiration
Glucose
Oxygen
Energy
Carbon dioxide

Water

Slide 12 - Slide

Make the right formula of respiration
Oxygen
Energy
Water
Glucose
Carbon Dioxide

Slide 13 - Drag question

What are the waste products of respiration
A
Carbon Dioxide + Oxygen
B
Oxygen + Water
C
Water + Energy
D
Carbon Dioxide + water

Slide 14 - Quiz

What is the fuel for respiration?
A
Carbon Dioxide
B
Oxygen
C
Glucose
D
Energy

Slide 15 - Quiz

Respiration only happens in humans
A
True
B
False

Slide 16 - Quiz

Respiration only happens during the day
A
True
B
False

Slide 17 - Quiz