1. Republic of the Philippines
Department of Education
Region IV-A CALABARZON
Division of Lipa City
Anilao National High School
Anilao, Lipa City
I. Objectives
Define Aerobic Respiration
Describe the 3 major steps of aerobic respiration ( glycolysis, Kreb’s
Cycle and Electron Transport Chain)
Illustrate the three major steps of aerobic respiration
Realize the importance of aerobic respiration to both chemothropic (
animals) and phototrophic (plants) organisms.
II. Subject Matter
a. Topic: Cellular Respiration
b. Sub topic: Aerobic Respiration and it’s 3 major steps
c. References: Biology Textbook pp. 63 – 64,
Basic Biology by Zenaida Realuyo pp. 50 – 54
http://www.wikipedia.com//aerobic.respiration
d. Materials
For Teachers For Students
Puzzled Picture Manila paper
Chalk and Board Marker
Illustrations Book
III. Lesson Development
Teacher’s Activity
A. Daily Routine
a. Prayer
b. Greetings
Good Morning Class!
c. Checking of Attendance and
Assignment
B. Recall
Last meeting we discussed about
the cellular respiration, as sort of review,
I have here a jumbled puzzle. Each piece
of this jumbled puzzle has the
corresponding question regarding of the
previous topic. So what you’re going to
do is to answer the question before we
started to post the puzzle on the board.
This puzzle correspond what will be our
topic for today.
Do I make my instructions clear?
Students’ Activity
Good Morning, sir!
Yes, sir.
2. It seems that you really understand our
previous topic.
C. Motivation
The student will arrange the
puzzle posted on the board.
So class, what is the word
being formed?
Precisely!
What do you think will be our topic for
today?
Very good!
D. Lesson Proper
1. Pre – Activity
a. Presentation
Aerobic respiration is the
process of releasing energy
(ATP) from the food molecule
(glucose) which requires
Oxygen. The complete
breakdown of glucose consists
of three main steps. We have
the Glycolysis, Kreb’s Cycle
and Electron Transport Chain.
Today, we will be able to
discuss Aerobic respiration and
it’s 3 main steps, and we will be
able to realize the importance of
aerobic respiration to all
organism that undergo to this
process.
So class, get ready!
b. Discussion of Procedure
I will group you into 4. Each
group will be given 5 minutes to
the task.
c. Points to Remember
But before we start out task, I
want you to introduce my friend
NARUTO and he has a message
to each and every one of you.
d. Distribution of Materials
(The students will get their
materials from their teacher.)
Aerobic Respiration
Aerobic Respiration
Yes Sir.
N – oise must be avoided
A – ttentive listening
R – ead the direction carefully
U – nderstand the direction and
instructions
T – ime management
O – bserve cleanliness
3. 2. Activity proper
(Refer to activity sheet provided
by the teacher.)
Guide Questions:
Group No. 1
1. What is Cellular Respiration?
2. What is Aerobic Respiration?
3. Give the three major steps of
aerobic respiration.
Group No. 2
1. What is Glycolysis?
2. Describe the process of Glycolysis.
3. What are the materials involve in
the process of glycolysis?
Group No. 3
1. What is Kreb’s Cycle?
2. Describe the process of Kreb’s
Cycle.
3. What are the materials involve in
the process of Kreb’s Cycle?
Group No. 4
1. What is Electron Transport Chain?
2. Describe the process of Electron
Transport Chain.
3. What are the materials involve in
the process of Electron Transport
Chain.
3. Post Activity
a. Presentation of Output
b. Discussion and Analysis of
Data
Okay class, let’s analyze your work if
they are correct.
How would you define Cellular
Respiration?
Very Good!
You mentioned Aerobic Respiration,
what is meant to Aerobic respiration?
Precisely!
What are the three major steps in
breakdown of food molecule to release
energy?
It is a process which releases energy
inside of each of the body’s cells. It is
divided into two kinds, the aerobic
respiration that requires Oxygen and
anaerobic respiration that does not
requires Oxygen.
It is the process that releases energy by
breaking down food molecules in the
process of Oxygen.
We have the Glycolysis, Kreb’s Cycle
and the Electron Transport Chain.
4. How will you define Glycolysis?
Very good!
Base on the illustration, How will you
describe Glycolysis?
Glycolysis
Precisely!
Class, ATP stands for Adenosine
Triposphate while NADH stands for
Nicotinamide Adenine Dinucleotide
where “H” refers to electron.
Now class, what is the function of
NADH?
Very Good!
What are the materials involve in
Glycolysis?
Precisely!
How about the Kreb’s Cycle? Where
can we found the process of Kreb’s
Cycle?
Base on the illustration, How will you
describe the Kreb’s Cycle?
A Process occurs in cytoplasm, where
the glucose breaks down into two
Pyruvates.
Glucose breaks down into two
pyruvates, (which consist of 3 carbons).
The energy released from glucose is
trapped in ATP molecules.
The process eventually yield a net gain
of 2 ATP molecules and also produces
2 NADH.
NADH is an electron carrier molecule
that temporarily stores energy.
Glucose, 2 Pyruvates, 2 ATP, 2 NADH
After glycolysis, the next step is the
Kreb’s Cycle where it occurs in the
Mitochondria.
The Pyruvate moves from the
cytoplasm into the mitochondrion and
forms Acetyl Co-enzyme A.
Acetyl Co-enzyme A enters the Kreb’s
Cycle which produces several
substances. Several of these are
recycled by moving continuously in the
cycle.
Glucose
2 Pyruvates
2 ATP
2 NADH
2 Acetyl
CoA
6
2 ATP
Electron
carrier
NADH
and
FADH
5. What are the materials involve in the
process of Kreb’s Cycle?
Very Good!
What do you think will happen to other
substance like and energy storing
compound of NADH and ?
Very Good!
Did you know that Kreb’s Cycle was
discovered by a scientist named Hans
Kreb and he received a Novel Prize for
that in 1953?
How will you define the Electron
Transport Chain?
Very Good!
Where can we find, or in what
particular cellular structure we can
found the Electron Transport Chain?
Base on the illustration, how will you
describe the electron transport chain?
What are the materials needed in
electron Transport Chain?
That’s right!
Now class, are the information about
Aerobic Respiration clear to you?
4. Generalization
Class, I have here an Aerobic
Respiration chart, What you’re
going to do is to place the materials
2 Acetyl Co – Enzyme, 6 , 2 ATP
and electron carriers
They move out of the Kreb’s Cycle for
the preparation for the next cycle which
is the Electron Transport System.
The electrons of NADH and
flow through the series of electron
transport acceptors.
Electron Transport occurs in
Mitochondria.
The flow of electron and H+ results in
ATP formation. The last electron
acceptor in the chain is Oxygen. The
electrons, Hydrogen ions and Oxygen
to form water.
NADH, , 32 ATP, e-, 2H+,
6
32 ATP
Electron
Carriers
(NADH
)
6 Oxygen
2H+ 6
6. to the proper position where it is
belong.
The lists of the materials are posted
on the board.
Is that clear?
I need volunteers to this task.
5. Application
I have here a video which can
give you an idea about the
importance of aerobic
respiration.
(The Students will watched the video)
My question is:
How aerobic respiration
does affect human life?
Why is it important to
release the energy of the
food we eat?
oftens begins with
which is broken
down during
which is an which produces
which does that is used in
not require
which involves
Yes Sir!
Cellular Respiration
1. Glucose
2. Glycolysis
3. Anaerobic
Respiration
5. Pyruvic
Acid
4. Oxygen
Aerobic
respiration
6. Kreb’s
Cycle
7.
Electron
Transport
Chain
7. 6. Valuing
Explain the statement:
“Aerobic Respiration is an
almost universal process –
carried out by most animals and
plants”.
Since animals and plants are the major
organism that can be found in this
world, and since that they undergo to
the process of aerobic respiration.
Therefore, it is a universal process.
IV. Evaluation
Directions: Identify the processes or steps involve in aerobic respiration and also
the important materials or molecules needed in the process. Use the illustration
below.
Processes or Steps of Aerobic Respiration
A. _________________ Materials and Molecules involve:
B. _________________ a.1 ___________________
C. _________________ a.2 ___________________
a.3 ___________________
b.1 ___________________
b.2 ___________________
b.3 ___________________
c.1 ___________________
c.2 ___________________
c.3 ___________________
V. Assignments
Directions: Draw and describe the following processes under Aerobic Respiration.
A. Glycolysis (1 – 5)
B. Kreb’s Cycle (6 – 10)
C. Electron Transport Chain ( 11 – 15)
Criteria:
Content . . . . . . . 50%
Art . . . . . . . . . . . 25%
Neatness . . . . . . 25%
Kreb’s
Cycle
Oxidative
phosphorylation
Glycolysis
A B
C
G
E
D
ATP
H
ATP ATP
F
