Download The Chemical Equation for Cellular Respiration is:

Cellular Respiration Student Notes
2014PreAP /GT
I. Cellular respiration makes ______________ by breaking down _____________ and
other carbon based molecules.
A. There are Three Metabolic Stages of Cellular Respiration
1. ____________________________ - “_________________________”
a. Anaerobic Respiration without Oxygen
b. Located in the Cytoplasm
c. Produces ______ ATP Molecules/Glucose
2. Krebs _________
a. Aerobic Respiration with Oxygen
b. Located in the mitochondrial matrix
c. Produces _____ ATP Molecules/Glucose
3. __________ ______________ __________
a. Aerobic Respiration with Oxygen
b. Located in the mitochondrial inner membrane
c. Produces ______ATP Molecules/Glucose
The Chemical Equation for Cellular Respiration is:
__________
+
6____
------
6_____
+
6______ + 36 _______
B. Mitochondrial Structure:
1. Double __________ Energy harvesting organelle
2. Highly folded inner membranes called __________ provide increased surface area.
3. The __________ is the inner fluid space.
4. Enzymes are located free within the _________ or membrane bound
II. STAGE I: GLYCOLYSIS – ANAEROBIC RESPIRATION
A. Occurs in the _______________.
B. The process in which __________ is broken down into 2____________ acid
molecules releasing 2 molecules of ATP/Glucose.
2X
Step 1. ____________ ATP molecules are used to energize a glucose molecule. The glucose
molecule is split into two _________-carbon molecules.
Step 2. Energized ________________ from the three-carbon molecules are transferred to
molecules of _______________. A series of reactions converts the 3-carbon molecules to
_____________________ which enters cellular respiration
III. FERMENTATION – ANAEROBIC respiration of pyruvate
A. 2 Types of Fermentation
a. Alcoholic Fermentation – occurs in _________& __________
1. Produces NAD+, _______ and Ethanol
2. Used in the production of wines, cheeses, breads
b. Lactic Acid Fermentation – occurs in ____________
1. Produces NAD+ and __________ acid
2. Causes pain in joints
IV. STAGE 2: KREBS CYCLE – AEROBIC RESPIRATION
a. Occurs in the mitochondrial matrix
b. A process that breaks pyruvate through a series of reactions producing
Electron Carrier compounds, ATP and carbon dioxide gas.
c. Produces large quantities of electron carriers like _________, and
__________ that go to the ________.
Step 1. _______________ (from glycolysis) is broken down.
Step 2. _____________________ bonds to the two-carbon molecule. This intermediate
molecule enter the Krebs cycle.
Step 3. ________________________ is formed.
Step 4. Citric acid is broken down, and _________________ is made.
Step 5. The five-carbon molecule is broken down. ____________________________ are made.
Step 6. The four-carbon molecule is rearranged. ____________________________ are formed.
Products from breakdown of one molecule of pyruvate:
 CO2 given off as a waste product
 ATP
 NADH goes to ETC
 FADH2 goes to ETC
STAGE 5: ELECTRON TRANSPORT CHAIN – AEROBIC RESPIRATION
a. Takes place in the inner ________________________ membrane
b. A process that uses high electron carriers from the Krebs cycle to generate ATP by
oxidative phosphorylation.
c. Produces ____________ ATP molecules per molecule of glucose.
Step 1. ____________________are removed from NADH and FADH2.
Step 2. _______________ ____________ are transported across the membrane.
Step 3. ADP is changed into ATP when hydrogen ions flow through __________ ____________.
Step 4. _________________ is formed when oxygen picks up electrons and hydrogen ions.
d. What powers the proton pump? _______________________________
e. Chemiosmosis is the diffusion of _____________ across the membrane.
f. Final Electron Acceptor is _________________ which forms _______________.
VI. SUMMARY - The products of cellular respiration – including glycolysis --- are



CO2 from the _______________ cycle and from the breakdown of pyruvate before the
Krebs cycle
Water from the ______________ _____________ ____________
A net gain of up to ______________ ATP molecules for every glucose molecule -______ from glycolysis, __________ from the Krebs cycle, and up to _________ from
the electron transport chain.