Chapter B9- Respiration Flashcards
What is aerobic respiration?
Glucose reacts with oxygen from the air in an exothermic reaction, transferring energy to your cells
What is the question for respiration?
Glucose+oxygen
———>
Carbon dioxide +water+ energy
What is respiration used for?
Living cells need energy to carry out their basic functions of life
In animals, respiration is transferred to make muscles contract
Mammals and birds maintain a constant internal body temperature
When you work out why does your body require glucose?
As your body needs more glucose and oxygen to respirate and gain energy
What happens to your body during exercise?
Your heart rate increases
Your breathing rate increases
Glycogen stores in the muscles is converted back to glucose
What is anaerobic respiration?
An exothermic resection where glucose is broken down without oxygen to produce lactic acid in animals, whilst a small amount of energy is transferred to the cell
What is lactic acid?
End product or anaerobic respiration in animals
What is the equation for anaerobic respiration?
Glucose
——>
Lactic acid+energy transferred
What does the build up of lactic acid result in?
An oxygen debt
Why do you continue to breathe hard after exercise?
As your body is breaking down the lactic acid with the oxygen being breathed in- they are paying off the oxygen debt
What is the equation for oxygen debt repayment?
Lactic acid + oxygen
——>
Carbon dioxide + water
What happens when plants cells repaired anaerobically?
They produce ethanol and carbon dioxide
What is anaerobic respiration in yeast cells known as?
Fermentation
What is fermentation used for?
Manufacture bread and alcohol
What is metabolism?
The sum of all the reactions that take place in a cell or in the body
