Cell Organelles PARTS OF A CELL Plasma (cell) membrane Cell Wall Cytoplasm Nucleus Nuclear membrane...

Cell OrganellesCell Organelles

PARTS OF A CELL

Plasma (cell) membrane Cell Wall Cytoplasm Nucleus Nuclear membrane Ribosomes Endoplasmic Reticulum Golgi Apparatus Mitochondria Lysosome Vacuole Chloroplasts

The Plasma Membrane is like the SKIN of the cell.

•The Cell Membrane controls what enters and leaves the cell.

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The Nucleus is like the BRAIN of the cell.

• The nucleus is the control centerof the cell.

• It contains the genetic information for the cell in the form of DNA called chromatin.

• It is a membrane bound structureusually found in the middle of the cell.

The Mighty

The “Mighty” Mitochondria is the POWERHOUSE of the cell.

•Mitochondria - Makes energy in the form of ATP

• ATP are produced to “power” the cell.

The Endoplasmic Reticulum is the cells DELIVERY SYSTEM.

•Endoplasmic Reticulum (ER) - Delivers proteins.

•A membranous tubular system

throughout the cell connecting

the nuclear membrane to the

cell membrane.

The Golgi Apparatus is the PACKAGING CENTER of the cell.

• Golgi Apparatus - Packages and modifies proteins.

Vacuoles are the STORAGE SPACES for cells.• These are

membranous sacs that can store food, enzymes, wastes, and other materials needed by the cell.

• Plant cells have large vacuoles for water storage.

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Lysosomes

• Specialized vacuole that contains digestive enzymes.

Ribosomes

• Protein synthesis (makes proteins)

Cytoplasm

• Jello-like substance where organelles are embedded.

Centrioles• Centrioles help in cell

division.

• They are found only in animal cells.

The Cell Wall is like a suit of ARMOR around the cell.

•Cell Wall - Supports the cell.

•It is found in plant cells

NOT animal cells.

Chloroplasts are where PHOTOSYNTHESIS occurs.

• Contain chlorophyll, a green pigment that traps the energy from light.

• Found in plant cells and some protists, NOT found in animal cells.

Differences in Plant Cells & Animal Cells

Plant Cells

• have a cell wall

• large vacuoles for water storage

• chloroplasts for photosynthesis

Animal Cells

• Vacuoles are smaller

• Centrioles for cell division

DIVISION OF LABOR

• Many celled organisms are called MULTI-CELLULAR. One cell within an organism may be adapted for movement, while another cell carries out digestion. Cell specialization allow the individual cells to depend on each other rather than trying to carry out all life functions (division of labor).

LEVELS OF ORGANIZATION

• Multi-cellular organisms are made up of cells, tissues, organs, and then, organ systems.

– Ex. Bone cell, bone tissue, the bone is an organ, all the bones form the skeletal system which is a part of the 13 systems that make up a human.

CELL TRANSPORT• PASSIVE TRANSPORT

– DO NOT REQUIRE ENERGY FROM THE CELL.

• ACTIVE TRANSPORT

– REQUIRES ENERGY BY THE CELL.

PASSIVE TRANSPORT• DIFFUSION

– The movement of particles from an area of high concentration to a low concentration.

• OSMOSIS

– The diffusion of WATER molecules.

Example of Diffusion: coffee aroma

ACTIVE TRANSPORT

• Substances move from an area of low concentration to an area of high concentration.

• Transport of materials against a “concentration gradient” requires energy.

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Plant vs. Animal Cell

References

www.biology.arizona.edu/

www.cellsalive.com

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Made by: Malissa AtteberyModified by Gace & Smith