1. Aerobic respiration carbon dioxide glucose + oxygen  + water (energy)
Last lesson you learnt that……
carbon
dioxide
glucose +
oxygen  +
water
(energy) +
What is the link between systems of the body and respiration?

2. How do the raw materials for respiration
get to all the cells?
Oxygen is carried in the red blood cells by haemoglobin Glucose is carried in the blood plasma

3. Effects of exercise on the body
Lesson objectives
Describe some of the changes in the body during exercise
Describe changes in the body during exercise and understand that they increase blood flow to muscles
Describe changes in the body during exercise and understand that they increase blood flow to muscles to supply sugar and oxygen and remove carbon dioxide.
Know that muscles store glucose as glycogen, which can be converted back to glucose for use during exercise.

4. Can you suggest some effects of exercise on the body?

5. Effects of exercise on the body
Increased heart rate
Arteries dilate (widen)
Increased breathing rate
Increased depth of breathing

6. Practical investigation
Physiology of exercise

7. Energy from respiration is need for muscle contraction.
Muscle cells have lots of mitochondria to provide the energy needed for muscle contraction
Muscles store glucose as glycogen which can be quickly converted to glucose when it is needed for respiration

8. Many of the reactions of respiration occur in the mitochondria
Exercise increases the depth of breaths
Water and carbon dioxide are reactants in respiration
Aerobic respiration requires glucose and oxygen ü ü û ü
Heart rate increases with exercise
The muscle cells do not contain any mitochondria
Energy from respiration is used for muscle contraction
Pulses can be found easily in the neck and wrist ü û ü ü
Muscles store glucose as glycogen
The rate of respiration is always the same
Breathing rate increase with exercise
Mitochondria are only found in animal cells ü û ü û
Plants respire at night only
Glucose for respiration comes from the respiratory system
Respiration and breathing are the same thing
Exercise causes arteries to dilate û û û ü

9. Effects of exercise on the body
Lesson review
Describe some of the changes in the body during exercise
Describe changes in the body during exercise and understand that they increase blood flow to muscles
Describe changes in the body during exercise and understand that they increase blood flow to muscles to supply of sugar and oxygen and removal of carbon dioxide.
Know that muscles store glucose as glycogen, which can be converted back to glucose for use during exercise.