The “brain” of the cell Large, spherical Contains DNA Enclosed in a double- layered nuclear...
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![Page 1: The “brain” of the cell Large, spherical Contains DNA Enclosed in a double- layered nuclear membrane.](https://reader035.fdocuments.us/reader035/viewer/2022062714/56649d365503460f94a0e9df/html5/thumbnails/1.jpg)
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•The “brain” of the cell
•Large, spherical
•Contains DNA
•Enclosed in a double-layered nuclear membrane
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•Ribosome production
•Consists RNA & Protein
•Consists of loose fibers composed of DNA & protein called chromosome
•Contains information for protein synthesis
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•Double lipid bilayer
•Protects the nucleus
•Contains nuclear pores
•Passing way between nucleus & cytoplasm
•Allows ribosome to exit nucleus
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•Ribosome are found in cytoplasm & ER membrane
•Composed of RNA & protein
•Help in the production of protein
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•Made up of a folded membrane
•Provides a tubular transport system inside the cell
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Rough ER:
•Has ribosome on surface
•Protein synthesis & transportation
Smooth ER:
•Does not have ribosome on surface
•Lipid synthesis
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•Energy source of the cell
•Contain cristae needed for aerobic respiration
•The more folds, the more reactions
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•Composed of flattened sacs
•Refines, packages, and delivers the cell products
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•Contains powerful enzymes to break up old cell components and bacteria
•“garbage disposals” of the cell
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•Contains enzymes that function in the synthesis of bile acids, breakdown of lipids, degradation of rare biochemicals, and detoxification, and detoxification of alcohol.
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•Made up of 2 hollow cylinders called centrioles
•Chromosome distribution
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•Motile extensions from the cell
•Cilia is shorter than flagella
•Flagella helps sperm cells move
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•“jelly stuff” inside the cell membrane
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•Selectively permeability
•Signal transduction
•Protects the cell and its organelles within
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•Plasma membrane
•Nucleus and nucleolus
•Mitochondria
•Ribosomes
•Endoplasmic reticulum
•Golgi apparatus
•Peroxisomes (the crystal in the electron micrograph is enclosed within a peroxisome)
•Microtubules
• Plant cells differ from animal cells in lacking:
•centrioles
•intermediate filaments
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