Download Cellular Respiration 2010

Cellular
Respiration
Journal Entry 53 (1/20)
What happens to
food after you eat
it?
How do we turn the
Biomolecules in our body
into energy?
Cellular Respiration Intro
A. Background
1. During a Process called Cellular
Respiration glucose is broken down
and turned in to energy (ATP)
Cellular Respiration Intro
A. Background
2. Transforms the chemical
energy (glucose) into usable energy
in the form of (ATP).
ATP
Cellular Respiration Intro
A. Background
3. ALL Organisms carryout this
process!
Cellular Respiration Intro
B. The Equation
C6H12O6 + 6O2
Glucose + Oxygen
6CO2 + 6H20 + ATP
yields
Carbon dioxide + water + energy
Notice anything interesting?
STOP AND THINK

What is the
purpose of cellular
respiration?
Cellular Respiration Intro
ATP Review!
Cellular Respiration Intro
C. Energy Carriers
Can store energy
(energy empty)
NAD+
FAD+
Can release energy (is
carrying energy)
NADH
FADH2
STOP and THINK!
How are ATP FADH2 and NADH
similar?
Glycolysis
1st step
A. First step of
Respiration
B. Occurs in the
Cytoplasm outside
the mitochondria
* Means to
break glucose
Glycolysis
1st step
C. The Process of Glycolysis
1. Requires input of 2 ATP
2. Produces 2 NADH and 4ATP
4. 3.
How
Glucose
many net
split
molecules
into twoofmolecules
ATP are
produced
of Pyruvate
from (aka
glycolysis
Pyruvic Acid)
STOP AND THINK

What does the
Glycolysis stage of
cellular respiration
accomplish?
Glycolysis
1st step
D. Glycolysis Summary
1. Pros
a. Fast
b. Requires no oxygen
2. Cons
a. Small energy output
b. Uses up all the NAD+
3. Solution
a. Send products other places to be processed
Glycolysis
1st step
E. Where do the products go?
Aerobic Pathway (a)
Glycolysis
Anaerobic Pathway (n)
Aerobic Pathway
A. Main Goal: To slowly
release energy from
pyruvate in the presences
of oxygen.
Aerobic Pathway
Stop and Think: Why
does this process happen
slowly
Aerobic Pathway: Krebs
Cycle (2a)
1.FACTS
a. Krebs Cycle
takes place in
the Mitochondria
b. Series of
reactions that
creates many
products
Aerobic: Krebs Cycle
Pyruvate
Glycolysis
Energy
ATP
Products per pyruvate: 3NADH, 1ATP, 1FADH2, & 2 CO2
NETS per glucoses
6NADH, 2ATP, 2FADHWaste
2, & 4 CO2
STOP AND THINK

What does the
Krebs cycle stage
of respiration
accomplish?
Aerobic: Electron Transport
Chain (3a)
1. Facts
a. All of the NADH and FADH2 give
their electrons to the ETC to be
turned into ATP
b. Occurs Across mitochondria
membrane
Aerobic: Electron
Transport Chain
a. NADH and FADH2 drop off energy
at the beginning of the chain
NAD+
NADH
Aerobic: Electron
Transport Chain
b. Oxygen is turned into water
H2O
O2
Aerobic: Electron
Transport Chain
c. The energy is converted into ATP
Note: 1 NADH= 3 ATP
1 FADH2 = 2 ATP
ATP
ADP
STOP AND THINK

What does the ETC
Stage of Cellular
Respiration
accomplish?
Photosynthesis
Energy
Transformation
Function
Location
Organisms
Reactants (starting
materials)
Products
Equation
Respiration
Comparison of Photosynthesis
and Respiration
Aerobic respiration totals