Cell Respiration 3.7 & 8.1
DIAGRAMS:
1. Label the structure of ATP
2. Label the diagram of anaerobic cell respiration
3. Label the diagram of aerobic respiration
4. Label the parts of the mitochondria including the outer membrane, inner
membrane, christae, matrix, mitochondrial DNA, ribosomes, and
intermembrane space. State the function of these structures.
Structure:
Function:
Outer membrane
Highly permeable to ions and large
molecules
Site for electron transport chain
and oxidative phosphorylation.
Cristae maximizes the surface area
for reactions
Contains enzymes and solutes for
the Link Reaction and Krebs Cycle
Inner membrane
(including christae)
Matrix
Mitochondrial DNA and
ribosomes
Protein production
Inter-membrane space
More efficient generation of
hydrogen ion concentration
gradient
5. Draw the Krebs cycle including formation of citrate, oxidation,
decarboxylation, substrate-level phosphorylation (ATP formation) and
production of electron carriers.
6. Complete the diagram of glycolysis (in the cytoplasm of cells)
Additional Questions:
7. Write the word equation for aerobic respiration
Glucose + Oxygen  Carbon Dioxide + Water + Energy
8. Complete the table below
Reaction
Location
Purpose
ATP yield
Glycolysis
Cytoplasm
Create 2x pyruvate
2
Link reaction
Matrix of the mitochondrion
Convert pyruvate (3C) to
acetyl CoA (2C)
0
Krebs Cycle
Matrix
Release hydrogen ions to
electron carriers for the
ETC (NADH/FADH)
2
Electron Transport
Chain
Inner mitochondrial
membrane
Energy to pump hydrogen
ions to intermembrane
space to generate
concentration gradient
0
Oxidative
phosphorylation
Inner membrane of
mitochondria using ATPase
Uses flow of hydrogen
ions through ATP Sythase
to ADP to ATP
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9. Fill in the blank
a. In oxidation, electrons are lost, oxygen is gained, and hydrogen is lost
b. In reduction, electrons are gained, oxygen is lost, and hydrogen is
gained
10. Define phosphorylation- addition of phosphates to the glucose molecule
11. Name compounds in cell respiration that containa. 6 carbons- glucose, citric acid
b. 4 carbons- oxaloacetic acid
c. 3 carbons- pyruvate
d. 2 carbons- acetyl CoA
e. 1 carbon- CO2
f. 0 carbons- ATP, NADH, FADH
12. What is chemiosmosis?
The diffusion of ions across a semi-permeable membrane through carrier
proteins. In cell respiration chemiosmosis occurs in the generation of ATP
when hydrogen ions are transported into the matrix through ATP synthase.