Download presentation
Presentation is loading. Please wait.
Published byGordon York Modified over 7 years ago
1
Aerobic Respiration Why Cellular Respiration Glycolysis Steps
Net Reaction Pyruvate Oxidation Krebs/Citric Acid Cycle The Electron Transport Chain The Role of O2 Proton Gradient and Chemiosmosis ATP Synthase Uncoupling the ETC
2
Teach With Fergy Preview File
Please enjoy this preview of your Power Point. Some slides appear blank because they have been removed. Other slides may have on them, this represents writing that has been removed. Please note that the Entire Unit Package can also be purchased at a steep discount from my Store.
3
Aerobic Respiration – With O2
4
What’s the goal of cellular respiration?
_______________ Goal is make Energy (ATP) C6H12O6 + O2 CO2 + H2O + ATP
5
This slide has been removed
6
Glycolysis Unfortunately there is a little more detail than that!
Consists of 10 enzyme-catalyzed reactions which change the 6-carbon glucose into two 3 carbon pyruvate molecules ______________ Has two phases: 1) Energy Investment Phase 2)
7
This slide has been removed
9
The Steps, here’s where it gets complicated!!
______________
10
This slide has been removed
11
Step 3
12
Step 4
13
This slide has been removed
14
So Far We’ve had 5 steps which have taken us from + 2 ATP 2 X
We have
15
Note – Since Two G3P’s were produced in Step 5, everything shown is now doubled
16
This slide has been removed
17
Step 8
18
Information has been removed Step 9
19
This slide has been removed
20
Net Reaction Glucose + 2ADP + 2Pi + 2NAD+ pyruvate + 2ATP + 2NADH + 2H+
21
The energy that is stored by the synthesis of two moles of ATP is 62 kJ The glycolysis energy conversion efficiency (per mole glucose processed)
22
This slide has been removed
23
Mitochondria In Eukaryotes - ................................
In Prokaryotes - cytoplasm
24
Stage 2: Pyruvate Oxidation
Two pyruvate molecules are transported through the two membranes and into the mitochondrial matrix ______________
25
This slide has been removed
26
(Krebs Cycle, Tricarboxylic Acid Cycle)
Citric Acid Cycle Stage 3 (Krebs Cycle, Tricarboxylic Acid Cycle)
28
This slide has been removed
29
Krebs Cycle Animation See how animations are embedded into the slides The Krebs Cycle Video See how videos are embedded into the slides
30
This slide has been removed
31
To Do In your textbook please find the actual breakdown of the Citric Acid cycle and write ALL of the steps into your notes (you don’t have to include enzymes) Include diagrams of the molecules involved Include
32
What have we made so far from our single molecule of Glucose?
Process Energy Carrier Created ATP NADH FADH2 H+ Glycolysis 2 Pyruvate Oxidation 1 X 2 = 2 Citric Acid Cycle 3 X 2 = 6 Total 4 10
33
This slide has been removed
34
We now need to extract the energy from our electron carriers (NADH and FADH2).
______________
35
The Electron Transport Chain (ETC)
The electron transport chain is comprised of a system of components on the inner mitochondrial membrane ______________ It consists of four
36
This slide has been removed
37
Oxygen’s Role The Oxygen goes to the mitochondria to perform the single vital task of pulling electrons away from complex IV. ______________
38
Each component on the ETC is more electronegative than the preceding carrier in the chain.
This allows the electrons to be moved along ______________
39
This slide has been removed
40
As a result of proton pumping across the inner membrane, ..........................
This difference in H+ concentration is called a ______________
41
Proton Gradient When one side of the inner mitochondrial membrane has more protons than the other side, the difference represents a source of energy that can be harnessed to do work.
42
This slide has been removed
43
Chemiosmosis ______________
H+ move across the inner mitochondria membrane and
44
ATP Synthase: A Molecular Motor
ATP synthase is a structure that spans the inner mitochondrial membrane _____________ ATP is created from ADP + Pi
45
Uncoupling Electron Transport and Chemiosmosis
When electron transport and ATP synthesis are uncoupled, the energy that is released during electron transport is not converted to ATP energy. Instead, it is released as Uncoupling proteins, when present, are in the inner mitochondrial membrane and give protons an alternative pathway to re-enter the matrix—____________
46
This slide has been removed
47
Uncoupling electron transport causes free energy that would be used to generate ATP ____________
This is useful for: hibernating mammals, some
Similar presentations
© 2025 SlidePlayer.com. Inc.
All rights reserved.