B9 Respiration Flashcards
What is aerobic respiration?
An enzyme controlled process that involves glucose reacting with sugar to transfer energy that your cells can use. It is an exothermic reaction, and carbon dioxide and water are produced as waste products.
Where does respiration take place?
Mitochondria
What is anaerobic respiration?
When energy is transferred to the muscle cells from the breakdown of glucose, without oxygen.
In what situations does anaerobic respiration take place?
When excercising hard and oxygen from the heart and blood cells cannot be transferred to the muscle cells fast enough.
What are the disadvantages of anaerobic respiration?
It results in the buildup of lactic acid, which fatigues the muscles and can stop them working, creating an oxygen debt
How is anaerobic respiration different in yeast compared to animal cells?
Anaerobic respiration in animal cells results in a buildup of lactic acid, where in yeast it produces ethanol and carbon dioxide.
Why is respiration important?
Living cells need energy to carry out the basic functions of life
Respiration keeps the body warm
In animals respiration is needed to make the muscles contract
