Bell Work
How is energy made available to the cell to move
large starch molecules across the cell membrane
through the process of endocytosis?
a. removing a phosphate from ATP
b. combining two glucose molecules
c. breaking carbon bonds in fatty acids
d. splitting the oxygen and hydrogen in water
molecules
Sunday, November 4, 2012
Bell Work
How is energy made available to the cell to move
large starch molecules across the cell membrane
through the process of endocytosis?
a. removing a phosphate from ATP
b. combining two glucose molecules
c. breaking carbon bonds in fatty acids
d. splitting the oxygen and hydrogen in water
molecules
b. is wrong because combining two glucose molecules
requires energy, it does not release energy
Sunday, November 4, 2012
Bell Work
How is energy made available to the cell to move
large starch molecules across the cell membrane
through the process of endocytosis?
a. removing a phosphate from ATP
b. combining two glucose molecules
c. breaking carbon bonds in fatty acids
d. splitting the oxygen and hydrogen in water
molecules
c. is wrong because breaking carbon bonds requires
energy, it does not release energy
Sunday, November 4, 2012
Bell Work
How is energy made available to the cell to move
large starch molecules across the cell membrane
through the process of endocytosis?
a. removing a phosphate from ATP
b. combining two glucose molecules
c. breaking carbon bonds in fatty acids
d. splitting the oxygen and hydrogen in water
molecules
d. is wrong because splitting water requires energy, it does
not release energy
Sunday, November 4, 2012
Bell Work
How is energy made available to the cell to move
large starch molecules across the cell membrane
through the process of endocytosis?
a. removing a phosphate from ATP
b. combining two glucose molecules
c. breaking carbon bonds in fatty acids
d. splitting the oxygen and hydrogen in water
molecules
a. is right because removing a phosphate from ATP releases
energy so that active transport can occur
Sunday, November 4, 2012
Cellular Respiration
Sunday, November 4, 2012
Cellular Respiration
the process that converts the energy stored in sugar
into cellular energy (ATP) in the mitochondria
Sunday, November 4, 2012
Aerobic Cellular Respiration
Sunday, November 4, 2012
Aerobic Cellular Respiration
Requirements
Sunday, November 4, 2012
Products
Aerobic Cellular Respiration
Requirements
• oxygen
Sunday, November 4, 2012
Products
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Sunday, November 4, 2012
Products
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Sunday, November 4, 2012
Products
• carbon dioxide
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Sunday, November 4, 2012
Products
• carbon dioxide
• water
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Sunday, November 4, 2012
Products
• carbon dioxide
• water
• energy
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Products
• carbon dioxide
• water
• energy
the opposite of photosynthesis
Sunday, November 4, 2012
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Products
• carbon dioxide
• water
• energy
the opposite of photosynthesis
Oxygen + Sugar
Sunday, November 4, 2012
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Products
• carbon dioxide
• water
• energy
the opposite of photosynthesis
Oxygen + Sugar
Sunday, November 4, 2012
Aerobic Cellular Respiration
Requirements
• oxygen
• sugar
Products
• carbon dioxide
• water
• energy
the opposite of photosynthesis
Oxygen + Sugar
Sunday, November 4, 2012
Carbon Dioxide + Water + Energy
Aerobic Cellular Respiration
Sunday, November 4, 2012
Aerobic Cellular Respiration
• Three Stages
Sunday, November 4, 2012
Aerobic Cellular Respiration
• Three Stages
• Glycolysis
Sunday, November 4, 2012
Aerobic Cellular Respiration
• Three Stages
• Glycolysis
• Kreb Cycle
Sunday, November 4, 2012
Aerobic Cellular Respiration
• Three Stages
• Glycolysis
• Kreb Cycle
• Electron Transport Chain
Sunday, November 4, 2012
Glycolysis
Sunday, November 4, 2012
Glycolysis
• occurs in the cytoplasm
Sunday, November 4, 2012
Glycolysis
• occurs in the cytoplasm
• glucose is split into two
molecules of pyruvate
Sunday, November 4, 2012
Glycolysis
• occurs in the cytoplasm
• glucose is split into two
molecules of pyruvate
• requires 2 ATP, produces 4
ATP
Sunday, November 4, 2012
Glycolysis
• occurs in the cytoplasm
• glucose is split into two
molecules of pyruvate
• requires 2 ATP, produces 4
ATP
• net gain of 2 ATP
Sunday, November 4, 2012
Krebs Cycle
Sunday, November 4, 2012
Krebs Cycle
• occurs in the mitochondria
Sunday, November 4, 2012
Krebs Cycle
• occurs in the mitochondria
• pyruvate broken down into
carbon dioxide, and released
Sunday, November 4, 2012
Krebs Cycle
• occurs in the mitochondria
• pyruvate broken down into
carbon dioxide, and released
• electrons and hydrogen bind
to NADH and FADH2
Sunday, November 4, 2012
Krebs Cycle
• occurs in the mitochondria
• pyruvate broken down into
carbon dioxide, and released
• electrons and hydrogen bind
to NADH and FADH
• 2 ATP produced
2
Sunday, November 4, 2012
Electron Transport Chain
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
• electrons and H+ ions from
Krebs Cycle are used to
convert ADP into ATP
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
• electrons and H+ ions from
Krebs Cycle are used to
convert ADP into ATP
• H+ ions diffuse down their
concentration gradient, releasing energy and then
forming water
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
• electrons and H+ ions from
Krebs Cycle are used to
convert ADP into ATP
• H+ ions diffuse down their
concentration gradient, releasing energy and then
forming water
• 34 ATP produced
Sunday, November 4, 2012
Electron Transport Chain
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
• electrons and H+ ions from
Krebs Cycle are used to
convert ADP into ATP
• H+ ions diffuse down their
concentration gradient, releasing energy and then
forming water
• 34 ATP produced
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
• electrons and H+ ions from
Krebs Cycle are used to
convert ADP into ATP
• H+ ions diffuse down their
concentration gradient, releasing energy and then
forming water
• 34 ATP produced
Sunday, November 4, 2012
Electron Transport Chain
• occurs in the mitochondria
• electrons and H+ ions from
Krebs Cycle are used to
convert ADP into ATP
• H+ ions diffuse down their
concentration gradient, releasing energy and then
forming water
• 34 ATP produced
Sunday, November 4, 2012
Review Questions
1. What is cellular respiration?
2. What organelle does aerobic cellular respiration occur in?
3. What are the requirements and products of aerobic cellular
respiration?
4. What is the formula for aerobic cellular respiration?
5. What are the three stages of aerobic cellular respiration, and
how many molecules of ATP are producing during each?
6. What happens do glucose during the first stage?
7. Why is there only a gain of 2 ATP, even though 4 are produced?
8. What is released into the air during the second stage?
9. What molecules carry electrons and hydrogen during the
second stage?
10. What happens to the electrons and hydrogen during the third
stage of aerobic cellular respiration?
Sunday, November 4, 2012