SOC 18: Energy Sources , Aerobic + Anaerboic Exercise Flashcards
Aerobic exercise
working at a moderate intensity allowing the body time to utilise oxygen for energy production and to work for a continuous period, e.g. long-distance events.
Glucose
a major source of energy for most cells in the body.
Aerobic respiration
the process of releasing energy from glucose, using oxygen.
Anaerobic respiration
the process of releasing energy from glucose, without oxygen.
Lactic acid
a colourless acid produced in muscle tissues during strenuous exercise when the body is exercising anaerobically at high intensity
Cramp
painful, involuntary contraction of a muscle, usually caused by fatigue.
Anaerobic exercise
Anaerobic activities are usually short but intense e.g. sprinting, lifting weights and jumping
Aerobic respiration word equation
Glucose + oxygen -> carbon dioxide + water + energy
Anaerobic respiration word equation
Glucose –> energy + lactic acid
Examples of anaerobic sports
Sprinting , weight lifting
Effects of lactic acid (build up)
Cramp and the muscles stop working. You have to rest while the blood supplies oxygen to your muscles so that they recover
Two main sources of energy
Carbohydrates and fats
Energy source for high intensity exercise
Carbohydrates
Energ source for low intensity exercise for long periods
Fats
What happens when you eat fats
It is broken down into fatty acids, which are absorbed into your blood and delivered to your cells. If nott needed thay can be stored in fat cells
