Organisms obtaining food Autotroph: An organism that makes it’s own food Ex. Plants, Algae Heterotroph: An organism that obtains food by eating.

Energy Of CellsCellular Respiration

Organisms obtaining food

Autotroph: An organism that makes it’s own food Ex. Plants, Algae

Heterotroph: An organism that obtains food by eating autotrophs. Ex. Human, Cow

Energy

Kinetic

Energy of motion

Thermal Energy Random

Molecular Motion

Potential

Stored Energy

Chemical Energy Atoms

arranged to store energy

Cellular Respiration

Input Sugar + Oxygen

Cellular Respiration Creates Heat and

ATP

Output CO2 + H2O

Input Gasoline +

Oxygen

Combustion Creates Heat

and movement

Output CO2 + H2O

Combustion

Cellular Respiration A chemical process that uses

oxygen to convert the energy in organic molecules into ATP

ATP = Adenosine Triphosphate

ATP = Energy “currency” for cell

ATP provides energy for the cell to do three types of work: Chemical work = building large molecules Mechanical work = muscle contraction Transport work = getting ions across cell

membrane

Respiration Aerobic: A process that requires oxygen

Cellular respiration vs. breathing Both Bring in Oxygen and release Co2

Cellular Respiration Video

Cellular Respiration equation

C6H12O6 +6O2 6CO2 + 6H2O + 38ATP

Cellular Respiration

Input: Glucose (C6H12O6) + Oxygen (O2)

Output: Carbon Dioxide (CO2) + Water (H2O) + 38 ATP

Lactic Acid Fermentation The process used to make ATP without

oxygen

Anaerobic= A process that does not require oxygen

ATP is made from just the process of glycolysis

Creates 2 ATP and Lactic Acid

Alcoholic Fermentation Organisms such as yeast can

ferment sugar and other foods but they create ethyl alcohol instead of Lactic Acid

Alcoholic Fermentation also releases CO2 which allows for the rising of bread or carbonation of beverages