Respiration Flashcards
what is energy needed for?
Movement
- Humans and other animals to keep warm
- Chemical reactions to build larger molecules.
e. g. proteins are made by chemically joining amino acids.
How is the energy we need supplied?
By a process called cellular respiration
What kind of reaction is respiration?Why?
An exothermic reaction because it releases energy.
Name the two different types of respiration?
- Aerobic respiration
- Anaerobic respiration
What is the definition of respiration?
The process of transferring energy from the breakdown of glucose.
Give the equation for aerobic respiration?
Glucose + oxygen GOES TO carbon dioxide + water
Does aerobic respiration release energy?Why?
Yes ,a lot, because the glucose molecule has been fully oxidised.
If oxygen is present cells carry out …………………….. ………………………….
Aerobic respiration
Not enough oxygen cells carry out ………… …………………….
Anaerobic respiration.
When there is a shortage of oxygen , muscle cells respire ………………
Anaerobically.
Give the equation for anaerobic respiration in muscles?
glucose goes to lactic acid.
What does lactic acid do during anaerobic respiration?
Builds up in muscles causing pain and tiredness, cramp.
In anaerobic respiration glucose is converted to ………………
Lactic acid.
Anaerobic respiration does not require any
Oxygen
Which respiration process releases less energy ? Why?
- Anaerobic respiration releases much less energy than aerobic respiration.
- This is because in anaerobic respiration, the oxidation of gluclose is incomplete.
