Aerobic/AnaerobicAerobic/AnaerobicRespirationRespiration

By : farouk jaarahBy : farouk jaarah

- The Marathon - - The Marathon - If somebody challenged you to a If somebody challenged you to a run a race, how should you prepare run a race, how should you prepare to win? to win?

1.1. PracticePractice2.2. Eat the right foodsEat the right foods3.3. Drink the right liquidsDrink the right liquids

All living organisms break down sugars to get energy. In humans this breakdown usually occurs with oxygen.

Aim:Aim:

To understand how Aerobic and Anaerobic Respiration Occurs

What is Aerobic Respiration?What is Aerobic Respiration?The breaking down of sugar to produce The breaking down of sugar to produce energy where oxygen is present.energy where oxygen is present.

ATPOHCOOOHC Enzymes 36666 2226126

Glucose + Oxygen Carbon Dioxide + Water+ Energy

When We Exercise…When We Exercise…After two minutes of exercise, the body responds After two minutes of exercise, the body responds by supplying working muscles with oxygen. by supplying working muscles with oxygen. When oxygen is present, glucose can be When oxygen is present, glucose can be completely broken down into carbon dioxide and completely broken down into carbon dioxide and water water

Anaerobic RespirationAnaerobic Respiration refers to refers to the oxidation of molecules in the the oxidation of molecules in the absence of oxygen to produce absence of oxygen to produce

energy energy

It is also knownIt is also knownAs FermentationAs Fermentation

1.In Muscle Cells- During intensive

activities, the oxygen in the muscle tissue is decreased to an extent that aerobic respiration does not occur at a sufficient rate. so, there is a buildup of lactic acid and your muscles get tired.Equation for anaerobic respiration in your muscles:C6H12O6 (Glucose) -> 2C3H6O3 (Lactic Acid) + Small amount of energy

What happens when fermentation occurs?

2. In Yeast- The fermentation end product is ethyl alcohol, and CO2

Energy + Glucose Yeast Ethanol + Carbon Dioxide + Energy

Chemical Formula for Anaerobic Respiration in yeast

Lab ExperimentLab Experiment

Carbon dioxide can be tested Carbon dioxide can be tested using lime water using lime water Calcium Calcium

hydroxide, Ca(OH)2hydroxide, Ca(OH)2..

So Who gives more energy? So Who gives more energy? Aerobic or Anaerobic Aerobic or Anaerobic

respiration ?respiration ?

Hint: Go back to the formulaHint: Go back to the formula