Cell Anatomy Cell Parts & their Function

What is a Cell? A cell is the smallest unit that is capable of performing life functions. It is the basic unit of living things.

Cell Theory All living things are made up of cells.All living things are made up of cells. Cells are the smallest working units of all living things.Cells are the smallest working units of all living things. All cells come from preexisting cells through cell division.All cells come from preexisting cells through cell division.

Examples of Cells Amoeba Proteus Plant Stem Red Blood Cell Nerve Cell Bacteria

Cell Organelles Cell Parts are referred to as organelles.Cell Parts are referred to as organelles.

Cell Wall Most commonly found in plant cells & bacteria Supports & protects cells Cell Wall

Cell Membrane protective layer around all cells allows food and oxygen into the cell and waste products out of the cell. Cell Wall Cell Membrane

Cytoplasm Gel-like materialGel-like material Surrounded by cell membraneSurrounded by cell membrane Cell Wall Cell Membrane Cytoplasm

Nucleus contains instructions for everything cell does; includes DNA Cell Wall Cell Membrane Cytoplasm Nucleus

Ribosome Each cell contains thousandsEach cell contains thousands Make proteinsMake proteins –(Think of it like a battery plant!) Found on ER & floating throughout the cellFound on ER & floating throughout the cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome

Endoplasmic Reticulum (ER for Short) Moves materials around in cellMoves materials around in cell –(Like a highway) Smooth type: lacks ribosomesSmooth type: lacks ribosomes Rough type : ribosomes embedded in surfaceRough type : ribosomes embedded in surface Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER

Mitochondrion releases energy from food –(Energy Plant) Controls level of water and other materials in cellControls level of water and other materials in cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion

Chloroplasts Found only in plant cells. Contains green chlorophyllContains green chlorophyll Where photosynthesis takes placeWhere photosynthesis takes place Helps plant cells make food.Helps plant cells make food. Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts

Vacuole membrane-bound temporary storage spaces Contains water solutionContains water solution Help plants maintain shapeHelp plants maintain shape Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuoles

Golgi Body Protein 'packaging plant'Protein 'packaging plant' Move materials within the cellMove materials within the cell Move materials out of the cellMove materials out of the cell Cell Wall Cell Membrane Cytoplasm Nucleus Ribosome ER Mitochondrion Chloroplasts Vacuoles Golgi Body

Make a Cell Your assignment:Your assignment: –We will make a model of the cell using the materials on the table. –You must use the paper plate as the basis of your cell.

Bibliography class.net/PowerPoints/Cell_structure_functio n.htmhttp:// class.net/PowerPoints/Cell_structure_functio n.htmhttp:// class.net/PowerPoints/Cell_structure_functio n.htmhttp:// class.net/PowerPoints/Cell_structure_functio n.htm Glencoe Life Structure Book AGlencoe Life Structure Book A