uses of energy in living organism
muscle contraction
protein synthesis
cell division
growth
nerve impulses
maintenance of body temp
muscle contraction
movement of muscle
protein synthesis
buliding protein for growth and repair
cell division
producing new cells
growth
increase in size and development
nerve impulses
transmission of signals in the nervous system
maintenance of body temp
keeping enzymes at optimum temp
aerobic respiration
The chemical reactions in cells that use oxygen to break down nutrient molecules to release energy.
word equation of aerobic respiration
glucose + oxygen → carbon dioxide + water
balanced symbol equation of aerobic respiration
C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O
aenerobic respiration
the chemical breakdown of nutrient molecules to release energy without using oxygen.
chemical equation for lactic acid
C₆H₁₂O₆ → 2C₃H₆O₃
anearo vs aero
aenero releases much less energy per glucose molecule than aero
word equation of anerobic respiration
glucose → lactic acid ✔️
during vigorous exercise
Lactic acid builds up in muscles and blood ✔️
This causes oxygen debt ✔️
oxygen debt
extra oxygen needed after exercise to remove lactic acid
removal of oxygen debt
The heart pumps fast
Breathing stays fast/deep
The liver breaks down lactic acid using oxygen
fast heart rate continues
blood transport lactic acid from muscles to the liver
faster and deeper breathing continues
supplies more oxygen to the body
Lactic acid is broken down in the liver
Oxygen is used to break down lactic acid in the liver using aerobic respiration
