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Beautiful bodies
Respiration
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Alveoli, Capillaries and Gas Exchange
Yr 8 > Science > Beautiful bodies > Respiration
10 cards
Cards (23)
Aerobic respiration is when your body
cells
release energy from food.
The word equation for aerobic respiration is:
Glucose
+
Oxygen
->
Carbon
Dioxide
+ Water +
Energy
The symbol equation for aerobic respiration is :
C
6
H
12
O
6
+
C_6H_{12}O_6+
C
6
H
12
O
6
+
O
2
→
C
O
2
+
O_2\ \rightarrow\ CO_2+
O
2
→
C
O
2
+
H
2
O
H_2O
H
2
O
The symbol equation (glucose =
C
6
H
12
O
6
C_6H_{12}O_6
C
6
H
12
O
6
) …is it balanced?
No
,
it’s
not.
Balanced, the equation should be :
C
6
H
12
O
6
+
C_6H_{12}O_6+
C
6
H
12
O
6
+
6
O
2
→
6
C
O
2
+
6O_2\ \rightarrow\ 6CO_2+
6
O
2
→
6
C
O
2
+
6
H
2
O
6H_2O
6
H
2
O
All organisms
respire
all the time.
Respiration releases
energy
from food. In
humans
a lot of this energy is releases as
heat.
The food substance used in
respiration
is called
glucose
.
The other reactant in respiration is the gas
oxygen.
The chemical products of respiration are
Carbon
Dioxide
and
Water.
Ventilation is the
movement
of air in and out of the
lungs.
You can show that you produce
Carbon
Dioxide
by breathing out into
lime
water.
It turns from
clear
to
cloudy.
You can show that you breathe out
water
vapour
using
cobalt
chloride
paper that turns from
blue
to
pink.
The air we breathe out contains more
Carbon
Dioxide
and less
Oxygen
than the air we breathe in. It is also
cleaner
and
warmer.
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