Inside the celll

Welcome To

My Presentation

Tropic of my Presentationis…….

Inside the Cell

What is Cell …?The word cell comes from the Latin “cellula” which

meaning is "a small room".

The cell is the basic structural and functional unit of all living organisms. It is the smallest unit of life .

History of CellThe cell was discovered by Robert Hooke in

1665.

Robert Hooke

Born : 28th July1635Fields : Physics and chemistry

Institutions : Oxford University

Died : 3rd March 1703 (aged 67)

Cell Parts and Their Functions

Nucleus - Large Oval body near the centre of the cell. - The control centre for all activity. - Surrounded by a nuclear membrane.

Nucleoplasm - is the protoplasm in the nucleus. - contains genetic material (DNA)

Cell Parts and Their Functions

Deoxyribonucleic acid

Nucleolus - is found in the nucleus. - contains more genetic information (RNA)

Cell Parts and Their Functions

Cell Membrane

Cell Parts and Their Functions

- the outer boundary of the cell. - it separates the cell from other cells.

• Cell Wall ( Plant Cells Only ) - non living structure that surrounds the plant cell. - protects + supports the cell. - made up of a tough fibre called cellulose.

Cell Parts and Their Functions

Cytoplasm - cell material outside the nucleus but within the cell membrane.

- clear thick fluid.

- contains structures called organelles.

Cell Parts and Their Functions

The cytoplasm is all the blue, gel-like liquid surrounding the organelles

Vacuoles - are clear fluid sacs that act as storage areas for food, minerals, and waste.

- in plant cell the vacuoles are large and mostly filled with water. This gives the plant support.

- in animal cells the vacuoles are much smaller.

Cell Parts and Their Functions

Mitochondria - power house of the cell. - centre of respiration of the cell. - they release energy for cell functions.

Cell Parts and Their Functions

Chloroplasts ( Plant cells only ) - contains a green pigment known as chlorophyll which is important for photosynthesis.

Cell Parts and Their Functions

Ribosomes

- tiny spherical bodies that help make proteins.

- found in the cytoplasm or attached to the endoplasmic reticulum.

Cell Parts and Their Functions

Endoplasmic Reticulum- systems of membranes throughout the cytoplasm.

- it connects the nuclear membrane to the cell membrane.

- passageway for material moving though the cell.

Cell Parts and Their Functions

Golgi Bodies - tube like structures that have tiny sacs at their ends.

- they help package protein.

Cell Parts and Their Functions

Lysosomes - small structures that contain enzymes which are used in digestion.

- if a lysosome were to burst it could destroy the cell.

Cell Parts and Their Functions

Thanks' to …..

4 Embankment Drive Road, Sector-10 (Off Dhaka-Ashulia Road) Uttara Model Town, Dhaka-1230, Bangladesh. Phone: 896 3523-27, 892 3469-70, 0171 4014933 Fax: 892 2625, [email protected],

www.iubat.edu

Dr. Mojibur Rahman KhanFaculty

College of Agricultural Sciences (CAS)

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