By what process is energy released?
What is the definition of respiration?
-The process of releasing energy from glucose, which happens constantly in every cell.
What is the energy from respiration used for?
-Build up larger molecules (proteins)
-Maintain a steady body temperature
How many types of respiration are there? What are they?
-2, Aerobic and anaerobic respiration
Which type of respiration releases more energy per glucose molecule?
When does aerobic respiration occur?
-When there is more oxygen.
Which type of respiration is used more often?
What is the word equation for aerobic respiration?
-Glucose + Oxygen à Carbon dioxide + Water
What is energy released by respiration used to make?
What does ATP do?
-Carries the energy released during respiration to the places where energy is needed.
Energy released from **** types of respiration is used to produce ATP.
ATP is described as the ‘e***** c*******’ of living things.
What is ATP synthesised from?
-ADP, using the breakdown of glucose during respiration.
Where does ATP move when providing energy?
-Moves to the part of the cell that requires energy.
What does breaking down ADP do?
-Releases energy where it is needed.
Therefore, describe the 3 processes of how ATP carries energy?
-1-ATP is synthesised from ADP (breakdown of glucose from respiration).
-2-ATP moves to the part of the cell that requires energy
-3-ATP is then broken down to ADP, releasing energy where it is needed.
What do muscles need to contract?
When exercising, why is more energy required?
-Muscles contract more frequently; increased respiration.
Which substance is required during increase respiration while exercising?
What two factors increase to get more oxygen for respiration?
-Breathing rate, heart rate
Why does breathing rate increase?
-Breathing rate increases to get more oxygen into the blood.
Why does heart rate increase? (2 marks)
-Get glucose and oxygenated blood around the body to our muscles quicker
-Remove CO2 quickly at the same time.
P**** rate is a measure of heart rate.
How is the pulse rate taken? What is the normal pulse rate?
-Number of pulses (heartbeats) in a minute.
-60 – 80 beats/min
What is the correlation between pulse rate and fitness?
-The fitter you are, the lower your resting heart rate.
What is the correlation between heart rate and blood pressure?
-The higher the heart rate, the higher the pressure (positive correlation).
When is the blood pressure at its highest? What is this known as?
-When the heart contracts.
When is the blood pressure at its lowest? What is this known as?
-When the heart relaxes.
What is the normal range of blood pressure?
-120/80 and 100/60
What sort of respiration does not use oxygen at all?
Why is anaerobic respiration NOT better than aerobic respiration?
-Releases less energy.
What is the advantage of anaerobic respiration?
-You can keep on using your muscles.
How is the breakdown of glucose in…