1. LESSON PLAN
SUBMITTED TO :-
Dr.PADMAPRIYA P.V
SUBMITTED BY :-
 L.ANJALI AJAYAN
NATURAL SCIENCE
N.S.S TRAINING
COLLEGE
PANDALAM

2. CURRICULAR STATEMENT
Develops different dimensions of knowledge process skill & attitude on the
journey of Oxygen from atmosphere to the tissue through lecture method
demonstration, group discussion & evaluation by questioning.
CONTENT ANALYSIS
NEW TERMS:-
FACTS :-
MINOR CONCEPT:-
MAJOR CONCEPT:-
LEARNING OUTCOME:-
Blood, alveolus, haemoglobin, Iron, RBC etc.
1) Lungs are full of alveolus.
2) Oxygen diffuses into the alveoli of the lungs.
3) Hemoglobin in the red blood corpuscles absorbs
oxygen.
4) There are 50 lakhs of RBC in one ml blood.
5) RBC is disc shaped & do not have a nucleus or other cell
organelles, therefore are able to carry more Hb.
6) Iron is the oxygen transporting factor in haemoglobin.
7) Haemoglobin absorbs oxygen & become oxyhaemoglobin.
8) Oxyhaemoglobin is less stable compound.
9) Oxyhaemoglobin dissociates very quickly and provides
oxygen to tissue.
-Haemoglobin in RBC absorbs oxygen
-RBC is disc shaped and have no nucleus or other cell
organelles
- Iron is the oxygen transporting factor in Hb.
-Haemoglobin absorbs oxygen to become oxyhaemoglobin.
- Oxyhaemoglobin is less stable & it dissociate into oxygen
& haemoglobin when it reach tissue.
The pupil,
1) recalls & recognize the structure of alveolus.
2) acquires knowledge in understanding the above
mentioned term, facts & concept.
3) understands the structure of RBC & haemoglobin.
4) applies the new knowledge in understanding how
oxyhaemoglobin is formed & get dissociates.
5) analyses the process of transport of oxygen to
tissue.
6) develops different component of creativity like
visualization, process skill like observation,
community skill, group discussion.
7) evaluates the flow of oxygen from lungs to tissue
through diffusion.

3. PRE-REQUISITE:-
LEARNING AIDS:-
- Structure & function of respiratory organ &
alveolus in man.
* Chart showing the importance of RBC.
* Chart showing the diffusion of oxygen from alveolus
to blood vessels.
* Activity cards
* Text book of class IX SCERT
* Chalk board
CLASSROOM INTERACTION
PROCEDURE
Introduction:-
Teacher make a rapport with students by
asking questions related to content
* How exchange of gas take place
between alveolus & blood vessels
* What is the difference between
pulmonary artery & pulmonary vein?
To create problematic situation
teacher ask following questions.
Is there any role of RBC in transport
of oxygen from alveolus to tissue?
So today we are going to study about
the journey of oxygen (C.B)
PRESENTATION
ACTIVITY- I
Teacher show the chart of RBC
having its importance & function
& ask students to observe the chart &
give their answers to the questions
after group discussion.
EXPECTED PUPIL RESPONSE
pupil interact with the teacher
Due to concentration difference
diffusion occurs.
PA- high co2 concentration. PV- high o2
concentration
pupil unable to answer
pupil observe the chart & give their
view points

4. RBC
Hai! Friends I am RBC. One of my
function is to help blood which carry
oxygen from lungs to different tissue
of the body. For this purpose Hb also
helps me. Iam disc shaped & have no
nucleus or other cell organelles
therefore iam able to carry more
haemoglobin. In one ml of blood, 50
lakhs is my population.
QUESTIONS
* Who carry O2 to different parts of
the body?
* In RBC which part combines with O2?
* What is the shape of RBC?
* What important feature in RBC helps
to carry more Hb
DISSCUSSION POINTS
* RBC in blood carries O2 to
different parts of the body.
* In RBC haemoglobin combine or
attract oxygen
* RBC is disc shaped (CB)
* RBC does not have nucleus or other
cell organelles, therefore can carry
more Hb.
ACTIVITY- II
Teacher give activity cards having
questions & ask students to give
answers through group discussion
* What is the oxygen transporting
system in haemoglobin?
* What happens when haemoglobin
combines with oxygen?
* What is the concentration of oxygen
in blood & tissue?
* What type of a compound is
pupil give their view points
With the help of text book.

5. oxyhaemoglobin?
Discussion points
* Iron is the oxygen transporting
factor in hemoglobin.
* Oxygen when combines with
hemoglobin oxyhaemoglobin is formed
(Hbo2).
* Concentration of oxygen is higher
in blood, so haemoglobin easily
combines with O2 to form
oxyhaemoglobin, but in tissue
concentration of oxygen is less so it
easily dissociates into oxygen &
haemoglobin
* Oxyhaemoglobin is a unstable
compound.
ACTIVITY-III
Teacher shows the chart of journey of
oxygen & ask students to discuss in
group & write their
view points in science diary
LUNGS
Hb + O2 ------> Hbo2
Hb  HbO
HbO2 -------> Hb + O2
TISSUES
DISCUSSION POINTS
In lungs haemoglobin & oxygen
combines to form oxyhaemoglobin
pupil observe the chart &
give their view points

6. (HbO2). When HbO2
Reaches tissue it again dissociates
into oxygen and haemoglobin due to
concentration difference.
Oxygen reaches reaches each part of
the body & haemoglobin returns to
lungs.
C.B SUMMARY
HbO2 +O2 ----> HbO2 {lungs} RBC- disc shaped
HbO2 ----> Hb + O2 {tissue} - no nucleus
Fe-O2 transporfactor.
Oxyhaemoglobin- less stable
REVIEW QUESTIONS
* What is the feature of RBC.
* Function of haemoglobin in transporting oxygen
FOLLOW UP ACTIVITY
Draw a flow chart of the journey of oxygen from lungs to tissue and the changes
occurring in your science diary.