Name of the student teacher : D. VAISHNAVI
Register No
: BB14149385
Standard
:X
Subject
: Biological science
Date
: 9.03.2015
General Instructional Objectives :
The pupil:
1.Acquires knowledge about the cell.
2.Acquires knowledge about the cell organelles present in an
animal cell.
3.Acquires knowledge about the function of cell organelles.
4.Develops the skill of drawing animal cell.
5.Develops the skill of observing and drawing cell organelles.
Specifications:
The pupil,
Recalls precious knowledge about cell biology.
Defines cell.
Explains the size and shape of cell.
Describes structural organization of a cell.
List outs the organelles of an animal cell.
Draws the structure of animal cells.
Summarizes cell membrane.
Clarifies cell wall.
Locates cytoplasm in the cell.
Differentiate ectoplasm and endoplasm.
Illustrates endoplasmic reticulum.
Recognize and discriminates endoplasmic reticulum.
Narrates and draws Golgi apparatus.
Recognizes lysosome.
Defines ribosome and illustrate ribosome.
Distinguishes 70 S and 80 S ribosome.
Identifies and draws mitochondria.
Describes centrosome.
Summarizes and illustrates nucleus.
Tabulates the cell organelles and their functions.
Approximate time needed:
40-45 Minutes
Prerequisite Skills:
Students basic knowledge about animal cell.
Materials and Resources Required for Lesson:
Chart showing animal cell.
Chart showing 3D structure of an nucleus.
3D model representing animall cell.
Flash card.
Rotating disc.
Colour chalk piece.
Printed Material:
Textbook
Web Resources:
1. vaishnavivijay.wordsearch.com
2. http://www.enchantedlearning.com
3. http://www.khanacademy.org
SPECIFICATIONS:
Motivates
CONTENT:
Animal cell
LEARNING EXPERIENCE:
( The pupil answers the following questions )
1.
2.
3.
4.
How does living thing differ from non living thing ?
Give some examples for living things .
What is the basic thing that makes a organ?
What is the functional unit in living organism?
EVALUATION:
What is a cell?
SPECIFICATIONS:
Recalls
CONTENT:
In all living organisms, the cell in the functional unit. All
biological activities revolve around the activity of the cell.
LEARNING EXPERIENCE:
Pupil understands the functional unit in living organism.
EVALUATION:
What is the functional unit in living organism?
SPECIFICATIONS:
Defines
CONTENT:
Cell is defined as a unit of an organism delimited by a
plasma membrane in animal cells.
LEARNING EXPERIENCE:
The pupil recognises the cell.
EVALUATION:
Cell is the ___________of an organism.
SPECIFICATION:
Explains
CONTENT:
There is much variation in size, shape and number of
cells in different organisms and also in various parts of the
body.
Cells may be spherical, spindle shaped, elongated,
polyhedral or irregular in shape. The shape of the cell is
determined by their specific function.
The number of cells is related to the size of the organ or
body.
LEARNING EXPERIENCE:
Explains about the shape of the cell.
EVALUATION:
The number of cells depends on the ____________ of
the organism.
SPECIFICATION:
Describes
CONTENT:
A cell is made up of life giving substance called
protoplasm. The protoplasm is a highly organised jelly like
viscous, semi fluid , composed of molecules of various
chemicals. It is called ‘physical basis of life’.
LEARNING EXPERIENCE:
The pupil understands protoplasm.
EVALUATION:
Explain about the protoplasm.
SPECIFICATION:
List outs
CONTENT:
An animal cell contains the following :
 Cell Membrane
 Cytoplasm
 Endoplasmic Reticulum
 Golgi complex
 Lysosomes
 Ribosomes
 Mitochondria
 Centrosome
 Nucleus
LEARNING EXPERIENCE:
Observes the cell organelles shown in the chart.
EVALUATION:
List the contents of an animal cell.
SPECIFICATION:
Draws
CONTENT:
LEARNING EXPERIENCE:
Draws and labels the organelles present in an animal cell.
EVALUATION:
Draw and label animal cell.
SPECIFICATION:
Summarizes
CONTENT:
The contents of the cell are enclosed by a thin,
delicate living membrane called cell membrane or the
plasma membrane. It is the outer boundary of the cell. Cell
membrane is flexible and is made up of a continuous bi-layer
of lipid molecules and protein molecules on both of its
surfaces and also embedded in it.
LEARNING EXPERIENCE:
Understands plasma membrane .
EVALUATION:
Explain in detail about the plasma membrane.
SPECIFICATIONS:
Clarifies
CONTENT:
The cell wall is absent in animal cell.
LEARNING EXPERIENCE:
The pupil learns the absence of cell wall in animal cell.
EVALUATION:
Animal cells has cell wall .
True or false.
SPECIFICATIONS:
Locates
CONTENT:
Cytoplasm is a viscous, translucent,
homogenous and semi-fluid mass of protoplasm excluding
the nucleus.
LEARNING EXPERIENCE:
Observes cytoplasm in the chart shown.
EVALUATION:
Cytoplasm is a ________.
SPECIFICATION:
Differentiates
CONTENT:
ECTOPLASM
ENDOPLASM
The portion of cytoplasm
immediately below the cell
membrane is gel like and is
called as ectoplasm.
The cytoplasm between the
ectoplasm and the nuclear
membrane is liquified and is
called endoplasm.
LEARNING EXPERIENCE:
Differentiates ectoplasm and endoplasm.
EVALUATION:
Define endoplasm.
SPECIFICATIONS:
Illustrates
CONTENT:
EXPERIENCE:
The teacher draws endoplasmic reticulum.
EVALUATION:
Draw the structure of endoplasmic reticulum.
SPECIFICATIONS:
Recognises
CONTENT:
Endoplasmic reticulum is a complicated and
inter connected system of membrane bound channels and
tubules. It is spread throughout the cytoplasm and is
continuous with the plasma membrane and nuclear
membrane.
LEARNING EXPERIENCE:
Understands endoplasmic reticulum.
EVALUATION:
Define endoplasmic reticulum.
SPECIFICATION:
Discriminates
CONTENT:
There are two types of endoplasmic reticulum.
a) Rough Endoplasmic Reticulum (RER)
b) Smooth Endoplasmic Reticulum(SER)
Rough endoplasmic reticulum is found in cells which
synthesize proteins. They possess rough walls because of
the ribosomes remain attached with membrane of
endoplasmic reticulum.
Smooth endoplasmic reticulum is found in cells which
synthesize lipids. They don’t have ribosomes.
LEARNING EXPERIENCE:
The pupil learns to discriminate endoplasmmic
reticulum.
EVALUATION:
What are the two types of Endoplasmic Reticulum?
SPECIFICATION:
Narrates
CONTENT:
The Golgi apparatus was first described by Camillo
Golgi. Golgi complex consist of saucer like compartments
called cisternae , network of inter connecting tubules, vesicles
and vacuoles at the peripheral regions.
LEARNING EXPERIENCE:
The pupil understands Golgi apparatus.
EVALUATION:
Who described Golgi bodies?
SPECIFICATION:
Draws
CONTENT:
LEARNING EXPERIENCE:
The pupil: Develops the skill of drawing Golgi complex.
EVALUATION:
Draw and label Golgi body.
SPECIFICATION:
Recognises
CONTENT:
Lysosomes are small membrane bound vesicles which contain
various types of digestive enzymes. They are called digestive
bags. They are also called as ‘ suicide bags’.
LEARNING EXPERIENCE:
Pupil learns about lysosomes.
EVALUATION:
What are the other names of lysosome?
SPECIFICATION:
Defines
CONTENT:
Ribosomes are small granular structures made up
of ribo nucleic acids (RNA) and proteins. They have two
subunits – a small subunit and a large subunit.
LEARNING EXPERIENCE:
What are ribosomes?
EVALUATION:
What are the two subunits of ribosomes?
SPECIFICTION :
Illustrates
CONTENT :
LEARNING EXPERIENCE :
The pupil : draws and labels ribosome.
EVALUATION :
Draw and label the structure of ribosomes.
SPECIFICATION :
Distinguishes
CONTENT :
70 S RIBOSOME
80 S RIBOSOME
•Made up of 30 S and 50 S
subunits.
•Found in prokaryotic cells.
Made up of 40 S and 60 S
subunits.
Found in eukaryotic cells.
LEARNING EXPERIENCE :
The pupil understands 70 S and 80 S ribosomes.
EVALUATION :
70 S ribosome is made up of ______ and _______
subunits.
SPECIFICATION:
Identifies
CONTENT :
Mitochondria are globular or cylindrical organelles.
Each mitochondria is bound by two membranes - an outer
continuous membrane and an inner membrane thrown into
folds called cristae . The inner membrane is filled with
homogenous dense material called matrix. The
mitochondria are called the power houses of cell.
LEARNING EXPERIENCE:
Understands what is cristae ?
EVALUATION:
The mitochondria are called ___________ of the cell.
SPECIFICATION :
Draws
CONTENT :
LEARNING EXPERIENCE :
The pupil: Draws and labels mitochondria.
EVALUATION :
Draw and label mitochondria.
SPECIFICATION:
Describes
CONTENT :
Centrosome is located one pole of the nucleus. It
contains a pair of small , hollow granules called centrioles.
LEARNING EXPERIENCE :
Recognises centrosome.
EVALUATION :
Centrosome contains hollow granules called _________.
SPECIFICATION:
Summarizes
CONTENT:
Nucleus is the major central structure of the cell. It has a
double membraned envelope called the nuclear envelope.
Nuclear envelope has many pores called nuclear pores. It
encloses a ground substance called nucleoplasm or
karyolymph. The nucleoplasm has nucleolus and chromatin
threads.
LEARNING EXPERIENCE :
The teacher defines karyolymph.
EVALUATION :
Define nucleus.
SPECIFICATION:
Illustrates
CONTENT :
LEARNING EXPERIENCE :
The pupil draws and labels nucleus.
EVALUATION :
Draw and label nucleus.
SPECIFICATIONS:
Tabulates
CONTENT :
CELL ORGANELLES
FUNCTIONS
Plasma membrane
Outer boundary to the cell.
Cytoplasm
Synthesis of proteins, nucleotides, fatty acids ,
etc.,
Endoplasmic reticulum
Protein and lipid synthesis.
Golgi complex
Formation of lysosome, synthesis of cell wall .
Lysosome
Intracellular digestion, natural defence of the
body.
Ribosome
Protein synthesis.
Mitochondria
ATP synthesis.
Centrosomes
Formation of spindle fibres during cell divison.
Nucleus
Inheritence of charecters from parents to
offsprings.
LEARNING EXPERIENCE :
The pupil understands the function of various cell organelles.
EVALUATION :
What is the function mitochondria ?
REVIEW:
Define cell.
List the various organelles present in animal cell.
Explain in detail about mitochondria .
What is plasma membrane?
Which is called as protein factories of a cell ?
Assignment:
Draw and explain various organelles present in an
animal cell.
Tabulate the functions of various cell organelles.