Do Now
 Write down main idea of each
scientist
 Underline 2 facts from each
scientist
 Circle 2 assumptions from each
scientist
http://www.khanacademy.org/video/introduction-tocellular-respiration?playlist=Biology
Think/Pair/Share
What are some things that humans need to survive?
2. How does your body feel at the start of exercise, such
as a long, slow run? How do you feel 15 minutes into
the run?
3. What do you think is happening in your cells to
cause the changes in how you feel?
4. Think about running as fast as you can for 100
meters. Could you keep up this pace for a much
longer distance? Why do you think this?
1.
Cellular Respiration Basics
 Humans (and most other animals) use the process of
cellular respiration to turn glucose (food) and oxygen
into ATP (usable energy)
 Where do you think most of cellular respiration takes
place???
Respiration Equation:
C6H12O6 + 6 O2 
6 CO2 +
6 H2O + ATP
glucose + oxygen  carbon dioxide + water + ATP
•
What are the raw materials?
•Glucose and Oxygen
•
What is produced?
•Carbon Dioxide, Water, and ATP
The Circle of Life
Glucose + Oxygen
Carbon Dioxide + Water
3 Steps of Cellular Respiration
 Glycolysis: cytoplasm; makes a small amount of ATP
 Kreb’s Cycle: mitochondria; makes a small amount of
ATP
 Electron Transport Chain: mitochondria; makes 32 ATP!
36 ATP
TOTAL
Cytoplasm
Glucose
ATP
Water
Oxygen
Carbon
Dioxide
ATP
Glycolysis: “splitting glucose”
- does not need oxygen
Inputs
Outputs
 6 Carbon Glucose
 Pyruvate
 2 ATP (to start)
 2 ATP
Kreb’s Cycle
Kreb’s Cycle: Citric Acid Cycle
Inputs
Outputs
 Pyruvate
 2 Electron Carriers
 2 ATP
 2 ATP
 Oxygen
 Carbon Dioxide
O2
CO2
Photosynthesi
s
Electron Transport
Chain
Electron Transport Chain
- need oxygen
Inputs
Outputs
 2 Electron Carriers
32 ATP
 ATP (to start)
 Oxygen
ATP
 H2O
O2
Grow, Reproduce,
Evolve, LIFE!!!
Photosynthesis
 http://www.youtube.com/watch?v=3aZrkdzrd04
 http://www.youtube.com/watch?v=_rw_yH-wx_8
[CHORUS]
R-E-S-P-I-R-A-T-I-O-N, do
you know what that means?
R-E-S-P-I-R-A-T-I-O-N, do
you know what that means?
You got your glucose
You got your Oxygen
Then what? You make that
energy!
No ATP? Sit down.
No Energy? Sit down.
No ATP? Sit down.
No Energy? Sit down
R-E-S-P-I-R-A-T-I-O-N, do
you know what that means?
Glycolysis starts in the cytoplasm scene
Glucose turns pyruvate getting split in
between
Then you see in the cellular
Glycolysis don’t need
Not a bit of that oxygen thang, that oxygen
thang
Next is the Kreb’s Cycle in the C.R. chain,
You should know you better get some gas
exchange,
Because O2 becomes CO2 at this stage,
Also made is lots of that NADH,
Last step is the electron transport chain
look,
Uses NADH to make energy I’m sure,
ATP is the body’s energy, it’s pure.
The electron transport chain makes water,
look
These last two steps in the mitochondria for
Without energy your body is in error.
Exit Ticket
1.
2.
3.
4.
5.
What are the 3 steps of cellular respiration?
What part of the cell does each step occur?
How much ATP is made at each step?
Which step(s) require oxygen?
What are the 2 main by products (not ATP) made
from cellular respiration?