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Anaerobic Respiration
Athletes will have to use anaerobic respiration when oxygen has been used up already.

Anaerobic Respiration

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This quiz looks at anaerobic respiration, in which glucose is broken down in the absence of oxygen, releasing energy - but also lactic acid. Respiration is one of the key features of all living creatures. Aerobic respiration occurs where there is a plentiful supply of oxygen. Where the oxygen supply is more limited, anaerobic respiration takes place.

1.
Blood flow away from muscles helps to remove which of the following?
Oxygen
Lactic acid
Water
Energy
It removes other waste products, such as CO2, from the muscle cells too
2.
Oxygen has to be paid back as a result of oxygen...
crisis
doubt
shortage
debt
This 'debt' is only paid off when all of the lactic acid has been oxidized and therefore removed from the muscles
3.
What does anaerobic mean?
Lots of energy
Lots of oxygen
Lack of oxygen
Lack of carbon dioxide
Anaerobic respiration is the last resort for muscles which need to keep on contracting but have very little oxygen
4.
The products in muscles respiring anaerobically are carbon dioxide and what else?
Amino acid
Fatty acid
Lactic acid
Sulphuric acid
Lactic acid is formed by the incomplete breakdown of glucose
5.
When would athletes muscles have to use anaerobic respiration?
When oxygen has been used up already
When oxygen is in good supply
At the start of the race
During sleep
When operating at maximum effort, the body is unable to supply sufficient oxygen to the muscles for aerobic respiration
6.
Which of the following undergoes anaerobic respiration?
The liver
The muscles
The eye
The pancreas
Muscles use up a lot of energy
7.
During anaerobic respiration, the breakdown of glucose is...
incomplete
complete
indifferent
slow
Complete breakdown forms carbon dioxide and water, not lactic acid
8.
Yeast cells undergo anaerobic respiration. Which of the following is a product of this?
Alcohol
Oxygen
Water
Light
This is the process of fermentation
9.
Build up of lactic acid in muscles leads to cramps and what else?
Waste
Fatigue
Alcohol production
Nightmares
Very little energy is released during anaerobic respiration
10.
What is broken down during anaerobic respiration?
Energy
Biomass
Glucose
Vitamin C
Glucose is the molecule which is broken down during respiration. Glycogen and starch can be broken down if needed to provide the glucose
Author:  Donna Maria Davidson

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