Assignment 2

1. Energy systems.
By Aaron Branch

2. ATP – Adenosine Triphosphate
• ATP is found in near enough every cell.
• ATP is broken down to create oxygen.
• ATP is glycogen.
• ATP is a substance that is used as the energy source for many
processes in cells. ATP is produced as a result of respiration.
For example, one glucose molecule can release enough
energy during respiration for the production of:
- 38 ATP molecules by aerobic respiration
- 2 ATP molecules by anaerobic respiration.

3. Lactic acid system
• Used during high intensity exercise.
• Lactic acid DOES NOT cause fatigue and nothing to do with making you
tired.
• A toxic chemical produced during anaerobic respiration.
• Not enough oxygen may reach the muscles during exercise. When this
happens, they use anaerobic respiration to obtain energy.
• Anaerobic respiration involves the incomplete breakdown of glucose. It
releases around 5% of the energy released by aerobic respiration, per
molecule of glucose. The waste product is lactic acid rather than carbon
dioxide and water:

4. Define energy
• “Energy is a property of objects which can be transferred to other
objects or converted into different forms.”
• Energy is used throughout our day to day lives all the time. We use
it for everything other than sleeping and eating, where we regain
energy is is why eating and sleeping well is majorly important in
maintaining a healthy lifestyle.

5. Phosphocreatine
• Phosphocreatine is a molecule that quickly gives off a high energy
phosphates in skeletal muscles the brain.

6. Key words.
• Muscular conditions.
• Circulation.
• Transmissions of nerve impulses.
• Digestion of foods.
• Reappearing and replacing tissues.
• Heat light – chemical carbohydrate lipids proteins.

7. Aerobic energy system
• Aerobic respiration needs oxygen. It is the release of a relatively
large amount of energy in cells by the breakdown of food
substances in the presence of oxygen:
• Glucose + oxygen → carbon dioxide + water
• C6H12O6 + 6O2 → 6CO2 + 6H2O.
• Growth
• Muscle contraction
• Cell division
• Active transport
• Nerve impulses
• Protein synthesis

8. Long term energy system