Cellular Respiration Notes
Introduction:
1. Cellular respiration occurs in the ______________________ of cells.
2. The purpose of cellular respiration is to _______________________ organic molecules
in order to generate ATP, which is used to power the activities of the cell.
3. Cellular respiration is a ______________________ pathway.
The Stages of Cellular Respiration:
Cellular respiration is broken down into three stages:
STAGE 1: Glycolysis
1. Glucose is broken down into ____ molecules of ________________.
2. In eukaryotes, glycolysis occurs in the ________________ of the cell. In prokaryotes,
glycolysis occurs in the ________________ of the cell.
STAGE 2: The Citric Acid Cycle
1. The pyruvate molecules enter the ______________________ of the cell.
2. __________________ is an enzyme that breaks down the pyruvate molecules further,
releasing ________________________.
STAGE 3: The Electron Transport Chain (ETC)
1. During the ETC, electrons are passed along until finally reaching the end where electrons
are combined with ______________ atoms and _______________ ions, creating water.
2. The energy released at each part of the chain is used to make ATP from ADP in a process
called _____________________.
For each molecule of _______________ degraded into CO2 and H2O by cellular respiration, the
cell makes around _____ molecules of ATP.