Cell Theory

1.]The cell is the unit of structure and function of all organism.
2.]All cells are reproduce from other cells

2 Types of cells

a. Prokaryotic Cells - cells without a true nucleus.
b. Eukaryotik Cells - cells with a true nucleus.

3 Major Divisions

1.] Cell wall/Cell Membrane
2.] Cytoplasm
3.] Nucleus

Nucleus
- contains the genes that control the entire cell
- the most conspicuous organelle in eukaryotic.
- the nucleus envelop encloses the nucleus
- nearly all of the cells DNA are located in the nucleus
- the most visible within the non-diving nucleus

Ribosomes
The site where the cells assembles enzymes and other proteins according to genetic instructions.

Endoplasmic Reticulum
Is a membrane labyrinth so extensive that it accounts for more than half of the total membrane in many eukaryotic cells.

- TWO Distincts Regions of E.R
* Rough E.R
* Smooth E.R

Smooth E.R
- Synthesis of lipids, carbohydrates metabolism and detoxification of drugs and other poisons
- Detoxification usually involves adding hydroxyl groups to drugs, increasing their solubility and making it easier to the flush the compounds from the body.

Roug E.R
- protein synthesis
- membrane production
- center of manufacturing, warehousing, sorting and shipping.
- after leaving the E.R many transport vesicles travel first to the Golgi bodies.

Mitochondria
- oval, sausage shaped, or thread like organelles
- bounded by a double membrane
- the outer membrane is smooth, the inner membrane has many folds called cristae
- breakdown fuel molecules, releasing energy for the cells work

Lysosomes
- membrane bounded bags of many digestive enzymes.
- they help cell function by aiding in cell renewal, constantly breaking down old cells parts as they are replaced with new cell parts.

Vacuoles
- vacoule comes from the latin word meaning "empty"
- within them can be formed such substance as water, food and waste.
- vacoules are most often found in the plant cell.

Cell Walls
- one of the features of paint cells that distinguish them from animal cells provide protection form a drying environment.

Chloroplasts
- the chloroplasts is a specialized member of a family of closely plant organelles called plasticls
- contain the green pigment function in the photosynthesis production of food.