https://padlet.com/stephanie_barber/vxeikz7qcz2g Variation/evolution/selective breeding Respiration/Metabolism/heart rate en-us 2017-12-15 09:28:16 UTC 2025-11-29 19:19:11 UTC hello@padlet.com stephanie_barber https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216415067 When exercising muscle activity increases.
Muscle cells RESPIRE at a faster rate to give more energy. The muscles need to Ben supplied with OXYGEN and GLUCOSE more quickly. The heart beats faster to increase flow of BLOOD which carries the products CARBON DIOXIDE and HEAT away from the muscles]]> 2017-12-15 09:34:14 UTC https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216415067 stephanie_barber https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216415713 Aerobic: In the Presents of oxygen
Anerobic: In the absence of oxygen 
Glucose+oxygen=carbon dioxide+water
Glucose=Lactic acid ]]> 2017-12-15 09:37:45 UTC https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216415713 stephanie_barber https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216416383 Muscles need energy during exercise 
The substance stored in the muscles and used during exercise is GLYCOGEN
The process that releases energy in the muscles is RESPIRATION 
A faster heart rate helps to supply the muscles with more OXYGEN 
During exercise the arteries supplying the muscles would PUMP HARDER
Example question:
When a person starts to swim, the breathing rate increases.
Give one way in which this increase help save the swimmer.

Supplies the body with more oxygen

]]> 2017-12-15 09:40:50 UTC https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216416383 stephanie_barber https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216417433 Metabolic rate: The rate at which chemical reactions take place in the body.
Factors that effect a person she metabolic rate:
Amount of activity
Inheritance/genetic
Proportion of muscle to fat]]> 2017-12-15 09:46:24 UTC https://padlet.com/stephanie_barber/vxeikz7qcz2g/wish/216417433