Biology B2 Topic 1

• Respiration is NOT breathing in and out.
• Respiration is the process that breaks down Glucose in order to Release Energy.
• All living things respire.
• Aerobic Respiration needs plenty of oxygen.
• The Equation for respiration is:

Glucose + Oxygen --> Water + Carbon Dioxide (+Energy)

• The circulatory system carries Glucose, Oxygen and Blood Around the body in the Cells.
• The Glicose needed for Respiration comes from the food broken down in the Digestive System.
• Oxygen comes from the air breathed in to the lungs.
• Carbon dioxide (CO2) is released when we breathe out.
• Difussion is the Movement of Praticles from a place with High Concentration to a place of Low Concentration.
• when cells respire they use up Oxygen and Glucose and so there is a higher concentration in the Blood.
• Due to this, the substances difuse from the blood in to the Capillaries.

• Muslces need Energy from respiration to Contract.
• While excersising, more energy is needed and so due to this oxygen is required in larger amounts.
• This is known as Increased Respiration.
• When doin heavy workouts Oxygen