Thursday January 22nd 2015

QOD - Identify the following reactions:

1.C6H12O6 + 6O2 6CO2 + 6H2O + ATP

2.C6H12O6 CO2 + ATP + Alcohol

3.6CO2 + 6H2O C6H12O6 + 6O2

4.C6H12O6 + 6O2 ATP + Lactic Acid

Reactants and Products

Cellular Respiration

PhotosynthesisLactic Acid

FermentationAlcohol

Fermentation

Where it occurs

cytoplasm and

mitochondria

chloroplast in plant cells

muscle cells yeast cells

Reactantsglucose and

oxygencarbon dioxide

and waterglucose glucose

Productscarbon

dioxide, water and ATP

glucose and oxygen

lactic acid and ATP

alcohol, carbon

dioxide and ATP

Cellular Respiration

Why is this process important to us as humans? Produces the energy for

living organisms to perform all necessary functions to maintain life.

Cellular respiration occurs in two phases

• Cytoplasm – called glycolysis– Glucose splits into two 3 carbon molecules– A small amount of ATP is produced

• Mitochondria– Glucose is completely broken down– A large amount of ATP is produced– This step requires oxygen

Cellular Respiration

Fermentation

• An alternative way to break down glucose and produce ATP.

• Occurs when there is no oxygen present– Example is during exercise– Lactic acid buildup in muscles

• Produces less ATP than cellular respiration

Fermentation

• Alcohol Fermentation is when yeast breaks down glucose and produces alcohol and carbon dioxide– Beer and wine production

– CO2 helps bread rise

Photosynthesis

Process by which a cell captures energy from sunlight and uses it to make food.

Carbon dioxide + water + sunlight = sugar + oxygen

Photosynthesis

• Happens in the chloroplast of plant cells

Why are plants green?

• Because of a pigment called chlorophyll

• Chlorophyll is the green pigment helps to capture the suns light.

• Chlorophyll absorbs all colors except green which is reflected.