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RESPIRATION GCSE PE

Aerobic and Aerobic explanation
by

James Masters

on 26 January 2014

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Transcript of RESPIRATION GCSE PE

REVISION: AEROBIC RESPIRATION -
with
OXYGEN (MARATHON)
ANAEROBIC RESPIRATION -
without
OXYGEN (100m SPRINT)
WATCH & LEARN!
SO WHAT DOES THIS MEAN?
WHAT DO YOU KNOW?
BREATHING ACTION
1. The tiny sacs in the lungs are called:
* bronchioles
* capillaries
* alveoli
WHAT IS RESPIRATION?
A candle gives off light & warmth because the wax has been burned.
* Candle wax is the fuel for the candle.
* It releases energy in the form of warmth/light.
* It's waste products are water and Carbon Dioxide.
AEROBIC RESPIRATION
FUEL + OXYGEN makes
ENERGY

............?............ + Oxygen Water + CO2 + Energy
Watch the clip and write down key pieces of information that is mentioned. Work as a group/pairs.
When we breathe in, the chest cavity changes s........ and s............ The diaphragm changes from a dome shape as it f............... and moves .......................... As this happens the intercostal ...................... raise the ................... up which makes the chest cavity l................... The air we breathe in is high in o................. and .............. in carbon dioxide.
EXAM QUESTIONS...
RESPIRATION
A Car can move because petrol has been burned
* Petrol is the fuel for the car
* It releases energy in the form of movement
* Waste products for this are water and Carbon Dioxide
ANAEROBIC RESPIRATION (No OXYGEN!!)

GLUCOSE
ENERGY + LACTIC ACID
REMEMBER:
GLUCOSE + Oxygen Water + CO2
+ Energy
AEROBIC: G.O = E.C.W

ANAEROBIC: G = E.L
BREATHING PROCESS?
Its a chemical reaction resulting in ENERGY!
What are the sums for Aerobic and Anaerobic respiration?
Lactic Acid - Bodies natural poison
Oxygen debt - lack of oxygen and must be paid back
The fitter we are the shorter
our recovery time
When we breathe .............. the reverse process occurs and the air is ........... in .......................................... and ............ in .........................
WHY?
The process of gaseous e...................... has occurred.
Breathing rate
increases
when we exercise. It can increase up to 3 times!
Why does this happen?
KEY TERMS SO FAR:
*
Gaseous Exchange
: Oxygen is exchanged with carbon dioxide.
*
Alveoli:
Air sacs in lungs where gaseous exchange takes place.
*
Intercostal muscles
: The muscles between the ribs which assist in breathing.
*
Lactic Acid
: A poison and waste product of anaerobic respiration.
*
GLUCOSE:
Needed by the body to satisfy energy needs.
OXYGEN DEBT
This happens as a result of our bodies running out of .................... Once we lack ...................... we then have to ............... our body back. This is done by taking d........... b................. for a period of time till our body ............................. (Think about loans!)
2. During respiration glucose releases energy in the...
* Lungs
* Blood
* Muscles
Alveoli
Muscles
3. During exercise working muscles need more...
* water
* oxygen
* carbon dioxide
Oxygen
4. Oxygen Debt means...
* Lactic Acid poisoning
* A lack of oxygen
* Too much oxygen in the body
A lack of oxygen
5. Give a simple definition of Aerobic and Anaerobic respiration
6. During Anaerobic exercise there is a build up of ....
* Water
* oxygen
* lactic acid
Lactic Acid
7. What happens to your breathing rate during exercise?
* stays the same
* decreases
* increases
* it stops
increases. Why?
When we breathe in, the chest cavity changes
shape
and
size
. The diaphragm changes from a dome shape as it
flattens
and moves
downwards.
As this happens the intercostal
muscles
raise the
ribs
up which makes the chest cavity
larger
The air we breathe in is high in
oxygen
and
low
in carbon dioxide.
When we breathe
out
the reverse process occurs and the air is
high
in
carbon dioxide
and
low
in
oxygen
WHY? The process of gaseous
exchange
has occurred.
This happens as a result of our bodies running out of
oxygen
. Once we lack
oxygen
we then have to
'pay'
our body back. This is done by taking
deep

breaths
for a period of time till our body
recovers.
(Think about loans!)
TASK:
For 30 seconds count how many breaths you take. Low or high and why?
Hold your breath for 30 seconds. Now count how many times you breath in and out for 30 seconds straight after?
Higher? What is happening?
Can you label the following diagram?
1. Nasal Cavity
2. Mouth
3. Larynx
4. Lung(s)
5. Bronchus (left)
6. Diaphrag
m
7. not needed
8
.

Trachea
9. Bronchus (right)
10. Bronchioles
11. Alveoli
Full transcript