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Cellular Organelles

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by

Lainey Molin

on 30 August 2012

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Transcript of Cellular Organelles

Organelles
Internal structures that carry out specific functions
Cytoplasm
The liquid-like portion of the cell that is outside the nucleus
Eukaryotic Cell Structure
Nucleus
Contains the cell's DNA
Surrounded by a
Nuclear Envelope
Chromatin
Uncoiled DNA bound to protein
Condenses to form prior to cell division
chromosomes
Nucleolus
Makes ribosomes
Ribosome
The surface upon which proteins are formed
Vacuole
Store materials such as water, carbohydrates, salts, and proteins
Central Vacuole
in plants
stores large amounts of water to help maintain the plant's structure
Vesicle
Stores and moves materials throughout the cell
Lysosome
Digests food and cell debris, including worn out organelles
Cytoskeleton
Network of protein filaments that help cell maintain its shape
Scaffolding for movement of intracellular structures
Microfilaments
Threadlike structures made of actin
Assist with cytoplasmic movements
Microtubules
Hollow structures made of tubulin
Maintain cell shape
Make up in animal cells, which create the which is also made up of microtubules
Make up and
centrioles
mitotic spindle,
cilia
flagella
Rough Endoplasmic Reticulum
Involved in the synthesis of proteins
Contains ribosomes
Smooth Endoplasmic Reticulum
Involved in the synthesis of lipids and detoxification of drugs
No ribosomes
Golgi Apparatus
Modifies, folds, sorts, and packages proteins
Mitochondria
Convert chemical energy stored in food into a more usable form
Chloroplast
Captures energy from sunlight and convert it into sugars
Cell Wall
Structure outside cell membrane in plants, fungi, algae, and prokaryotes
In plants, made of cellulose
Cell Membrane
Double-layered sheet called a which consists of proteins embedded in lipids
lipid bilayer
Fluid Mosaic
Cell membrane is made up of many different types of molecules
These molecules can float around one another and move throughout the membrane lipids
Selectively Permeable
Some molecules can permeate through the membrane and others cannot
Full transcript