Name of the student teacher : D. VAISHNAVI Register No : BB Standard : X Subject : Biological science Date :

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: 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 vaishnavivijay.wordsearch.com

SPECIFICATIONS: Motivates CONTENT: Animal cell LEARNING EXPERIENCE: ( The pupil answers the following questions ) 1.How does living thing differ from non living thing ? 2.Give some examples for living things. 3.What is the basic thing that makes a organ? 4.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: LEARNING EXPERIENCE: Differentiates ectoplasm and endoplasm. EVALUATION: Define endoplasm. ECTOPLASMENDOPLASM 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.

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 : LEARNING EXPERIENCE : The pupil understands 70 S and 80 S ribosomes. EVALUATION : 70 S ribosome is made up of ______ and _______ subunits. 70 S RIBOSOME80 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.

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 : LEARNING EXPERIENCE : The pupil understands the function of various cell organelles. EVALUATION : What is the function mitochondria ? CELL ORGANELLESFUNCTIONS Plasma membraneOuter boundary to the cell. CytoplasmSynthesis of proteins, nucleotides, fatty acids, etc., Endoplasmic reticulumProtein and lipid synthesis. Golgi complexFormation of lysosome, synthesis of cell wall. LysosomeIntracellular digestion, natural defence of the body. RibosomeProtein synthesis. MitochondriaATP synthesis. CentrosomesFormation of spindle fibres during cell divison. NucleusInheritence of charecters from parents to offsprings.

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.