14 terms

Cellular Organelles

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Chromosomes
Contains genetic information
Composed of DNA
23 per human
Nuclear Membrane
Surrounds nulceus
composed of two layers
Nucleous
Spherical shape
Contains RNA for protein manufacture
Centrioles
Paired cylindrical organelles near nuclus
Composed of nine tubes, each with three tubules
Involved in cellular division
Cytoskeleton
Composed of microtubules
Supports cell and provides shape
Aids movement of materials in and out
Chlorplasts
A plastid usually found in plants
Contains green chlorophyll where photosynthesis takes place
Endoplasmic Reticlum
A series if folded membranes in which materials can be processed and moved around inside of the cell
Stores,separates and serves as cells transport system
Golgi Apparatus
Protein packaging plant
A memebrane structutre found near nucleus
Composed of numerous layers forming a sac
Lysosomes
Digestive plant for proteins, lipids and carbohydrates
Transports undigested material to cell membrane for removal
Mitochondria
Double-layer outer membrane with inner foldes called cristae
Energy producing chemiclas reactions take place on cristae
Controls level of water and other materials in the cell
Recycles and decomposes proteins, fats, and carbohydrates
Ribosomes
Each cell contains thousands
Miniature protein factories
Embedded in rough endoplasmic reticulum
Injects proteins directly into cytoplasm
Vacuoles
Membrane bound sacs for storage, digestion and waste removal
contractile vacuoles for water removal( in cellular organism)
Cell Wall
Commonly found in plants
Controls turgity
Extracellular structure surrounding plasma
Plasma Membrane
Outer membrane of cell controls cellular traffic
Contains protein that span through the membrane and allow passage of materials
Proteins are surrounded by a phospholipid bi-layer