B2.6 Flashcards
What do enzymes control in cells
Chemical reaction
What are the types of respiration
Aerobic and anaerobic
What is aerobic respiration
Repiration that uses oxygen and glucose to release energy
What organisms use aerobic respiration
Plants
Animals
Where does aerobic respiration take place
Mostly takes place inside mitochondria
Word equation for aerobic respiration
Glucose+ oxygen👉🏾 carbon dioxide + water+ energy
What is energy from aerobic respiration used for in animals
Build larger molecules from smaller ones
Muscle contraction
Maintain body temperature in colder settings
What is energy from aerobic respiration used for in plants
Build sugars, nitrates and other nutrients into amino acids to make proteins
What happens during exercise
The heart rate increase
The rate and depth if breathing increases
What do changes during exercise do to the body
Increased blood flow to muscle
Increased supply of sugar and oxygen
Faster rate of removal of C02
Glycogen
Muscles store glucose as glycogen
Convert back to glucose for use during exercise
Why during exercise do we use anaerobic respiration
Because of insufficient oxygen reaching muscles
What is anaerobic respiration
Incomplete breakdown of glucose and produces lactic acid
Word equation of anaerobic respiration
Glucose 👉🏾energy+ lactic acid
Why is there more energy released in aerobic than anaerobic respiration
Anaerobic respiration is the incomplete breakdown of glucose and oxygen.
What does anaerobic respiration result in
Oxygen debt
What is oxygen debt
The amount of oxygen needed to oxidise the lactic acid to carbon dioxide and water
What happens after long periods of vigorous exercise
Muscles become fatigued and contracts inefficiently
What is muscle fatigue caused by
Lactic acid build up
What removes lactic acid
Oxygen filled blood flowing through the muscles
Respiration
Process of releasing energy from the breakdown of glucose
Where does respiration happen
In every cell
Why is a fit person recovery time shorter than an unfit person
Fit person has a bigger heart so more oxygen filled blood going to muscles
Why do we have an increased heart rate when we exercise
Insufficient supply of oxygen
Breathe faster
More oxygen come in
For Aerobic respiration
