2. Definition of Cellular Respiration
• Cellular Respiration- a sequence of breaking
down processes by which energy is produced
by cells through the coming apart of organic
molecules.
5. Glycolysis
• Glycolysis is the breaking down of sugar
molecules. Two 3 carbon molecules called
pyruvate are made by glucose being cut in half.
During this process, two NADH and two ATP
are gained.
6. Kreb’s Cycle
• Kreb’s Cycle- the NADH and FADH.2 are high
energy electron carriers, ready to be donated to
the nest part of cell respiration. Two ATP
molecules are made and carbon dioxide is
released.
7. Electron Transport Chain
• Electron Transport Chain- the Complexes 1,3, and 4 use the
released energy from the electron flow and create an electron
gradient and H+. This pushes ATP synthesis by chemiosmosis.
Two ATP are made and carbon dioxide is released. 3ADP + 3P
and 3ATP are made.
8. 2 Types of Fermentation
• Lactic Acid Fermentation- the change of
pyruvate to lactate without any discharge of
carbon dioxide.
• Alcohol Fermentation- the transformation of
pyruvate to carbon dioxide and ethyl alcohol.
9. Cellular Respiration
• The types of organisms that “do” cellular
respiration are all oxygen using organisms, such as
plants, animals, and single celled organisms
• Cellular respiration is related to photosynthesis by
them being the opposite. Photosynthesis is the
making of oxygen from the plants and animals, it is
a endergonic reaction. Cellular Respiration is an
exergonic reaction by which energy is made by the
breaking down of cells and other material.
