Soc 18: Aerobic, Anareobic Exercise and Energy Sources Flashcards
What is glucose?
A major source of energy for most cells in the body.
What is aerobic respiration?
The process of releasing energy from glucose using oxygen.
What is aerobic exercise?
Working at moderate intensity allowing the body time to utilise oxygen for energy production and to work for a continuous period.
What is anaerobic respiration?
The process of releasing energy from glucose without oxygen.
What is anaerobic exercise?
Usually short and intense such as sprinting and weightlifting.
What is lactic acid?
Toxic acid produced in muscle tiasues during strenuous exercise when the body is exercising anaerobically at high intensity.
What is cramp?
Painful, involuntary contraction of a muscle usually caused by fatigue.
What is oxygen debt?
The amount of oxygen needed to break down any lactic acid produced during anaerobic exercise.
What is the equation for aerobic respiration?
Glucose + Oxygen —> Carbon Dioxide + Water + Energy
What is equation for anaerobic respiration?
Glucose —> Energy + Lactic Acid
What are the main energy sources and what are they mainly used for?
Fats - provide energy for only moderate intensity for long periods of time.
Carbohydrates - main energy source for both high and moderate intensity exercise.
What are fats broken down into?
Broken down into fatty acids which are stored in the blood and delivered to the cells.
Can be stored in fat cells.
Examples of foods fats are found in.
Margarine, butter, oils, cheese, fish, bacon and nuts.
What are carbohydrates broken down into?
They are broken down into glucose and glycogen, which can be absorbed through walls of small intestine and into blood.
How is glucose transported?
- It passes into the blood, transported to the liver and circulated around the body.
- Once your cells use the glucose it needs, some of the excess is stored in the liger, ready to be distributed if blood glucose levels get too low.
- Rest can be turned to fats for long term storage.
