Download 10-3 Getting Energy to Make ATP

I. Cellular
Energy
a.
Cellular respiration-process of breaking down

glucose molecules to produce energy (ATP)
 b.
All cells go through cellular respiration----plant
and animal cells
Cell ular Energy
i. GLYCOLYSIS
a. Cell ular respiration-process of breaking down glucose molecule
1. 1st step
produceenergy
(ATP)of cellular respiration
b. All cell s go through cell ular respiration----plant and anim al cell s
 2. Cells break down glucose to make
i. GLYCOLYSIS
2 1.
ATP
pyruvic
acid
1stand
step of cell
ular respiration
Cell s break
glucose
to make 2 ATP and py
 3.2.Takes
placedown
in the
cytoplasm
Gly coly sis Summ ary
Glucose 
Chemical
react ions
requiring
ATP, ADP
and phosphate
 Net 2 ATP
Aerobic versus Anaerobic
Respiration
Is Oxygen Present?
Yes
AEROBIC RESPIRATION
Must have O2
Takes place in the
mitochondria
Produces 36 ATP
No
ANAEROBIC RESPIRATION
No O2 is
needed
takes place in the
cytoplasm
produces 2 ATP
c. Aerobic Respiration
i. Occurs only when oxygen is present
 ii. A series of reactions that change
pyruvic acid into ATP

 1.
the Krebs cycle or the citric acid
cycle takes place in the
mitochondria

i. It produces 2 ATP
 2.
The electron transport chain also
takes place in the mitochondria and
it produces 34 ATP
iii. With glycolysis, aerobic
respiration produces 36 NET ATP
molecules from 1 glucose---2 ATP
are used to drive the process
Section 9-2
Figure 9–7 Electron
Transport Chain
Electron Transport
Hydrogen Ion Movement
Channel
Mitochondrion
Intermembrane
Space
ATP syntheses
Inner
Membrane
Matrix
ATP Production
Go to
Section:

iv. ATP is used for cell processes, growth,
repair, movement, homeostasis etc…
Section 9-1
Figure 9–2 Respiration: An
Overview
Mitochondrion
Electrons carried in NADH
Pyruvic
acid
Glucose
Glycolysis
Krebs
Cycle
Electrons
carried in
NADH and
FADH2
Electron
Transport
Chain
Mitochondrion
Cytoplasm
Go to
Section:
Aerobic Respiration Summary
(including glycolysis)
 Glucose 
 C6H12O6
Chemical reactions  Net 36 ATP
Requiring ADP, ATP, (plus CO2 and
H2O)
Phosphate and Oxygen
Section 9-2
Cellular Respiration
1. The electron transport chain also takes place
in the
Carbon
Glucose
mi tochondria and it produces 34 ATP
Dioxide
(C6H1206)
Electron
Krebs
(COATP
ii . Produces
36 NET ATP
molecules Transport
from 1 glucose---2
are used
2)
+
Glycolysis
Cycle
+
Oxygen to drive the process
Chain
Water
.
ATP
is
used
for
cell
processes,
growth,
repair,
movement,
(0iii
)
2
(H2O)
homeostatsis etcÉ
Aerobic Respiration
Reaction)
Aerobic(Net
Respiration
Summ ary (including gly colysis)
Glucose  chemi cal reactions requiring
 NET 36 ATP, CO2, & H2O
_______________
+ __________
O_______
+ _________ + _____
ADP, ATP,
phosphate &
2
glucose
oxygen
carbon
water
energy
Go to
dioxide
Section:
d. Anaerobic Respiration
i. Occurs when no oxygen is present
 ii. Not very efficient---only produces
2 ATP molecules from one glucose
 iii. There are different types of
anaerobic respiration



1. Lactic Acid
Fermentation -animal and
some bacteria use this
process
a. Produces lactic acid
(causes muscle soreness)
and 2 ATP
2. Alcoholic Fermentation -plant cells
and some microorganism like yeast
a. Produces ethyl alcohol and
CO2 and ATP
 Alcoholic drinks are produced with fermentation,
and bread is forced to rise from the carbon dioxide
produced by yeast fermenting the bread.
 The alcohol in bread is evaporated during the cooking
process.
Section 9-1
Chemical Pathways
Glucose
Glycolysis
Krebs
cycle
Fermentation
(without oxygen)
Go to
Section:
Electron
transport
Alcohol or
lactic acid
mi croorganism li ke yeast
a. Produces ethyl alcohol and CO2 and ATP
Anaerobic Respiration Summ ary (including gly coly sis)
_____________  chemi cal reactions
 Net 2 ATP
Anaerobic Respiration (Net Reaction)
enzymes
_____________
glucose
Photosynthesis and respiration are almost
exactly opposite reactions.
Photosynthesis:
6CO2 + 6H2O + sun light  C6H12O6 + 6O2
 Respiration:
 C6H12O6 + 6O2  6CO2 + 6H2O + ATP
Cellular
Respiration
Takes place in-Occurs when-What goes in?
What comes out?
Energy source?
Result?
Photosynthesis
Cellular
Respiration
Photosynthesis
Takes place in--
All cells
Cells with
Chloroplast
Occurs when--
All of the time
In the presence
of light
What goes in?
Carbohydrates
and oxygen
CO2 and H2O
What comes out?
CO2 and H2O
Carbohydrates
and oxygen
Energy source?
Chemical
bonds
Light
Result?
Energy is
stored as ATP
Energy is stored
as carbohydrates
Copy and Complete
 What is the process that starts cellular respiration?
 Name three parts of aerobic respiration.
 How many ATP molecules are produced from one
glucose molecule by glycolysis?
 Most of aerobic respiration occurs in the ____.
 Anaerobic respiration occurs in the___.
 During glycolysis, glucose is broken down into
pyruvic acid, and two molecules of ATP are
formed. What will happen next in a muscle cell if
NO oxygen is present?
 When yeast is deprived of oxygen, it will convert
glucose into—
 Which process does NOT produce CO2?
 How many ATP molecules are produced form one
glucose molecule during the entire process of
aerobic respiration?
 How many net ATP molecules are produced from
one glucose molecule if a cell undergoes anaerobic
respiration?