Science Cell Vocabulary

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Nuclear envelope
Separates the nucleus from the rest of the cell
Nucleolus
Made up of proteins and acids; aids in cell division
Nuclear pore
Allows hereditary material (chromatin) into and out of the nucleus when necessary
Chromatin
Network of tiny threads that contain the hereditary material of the cell
Nuclear Sap
The fluid that fills the rest of the space in the nucleus
Cytoplasm
Everything inside the cell that is outside of the nucleus
Michocondrion
Creates energy used for cell processes; sometimes called the "powerhouse" of the cell
Golgi complex
Stack of membranous sacs in which different molecules are manufactured and packaged for export from the cell
Centrioles
Cylindrical bundles of microtubules that seem to give rise to the longer spindle fibers that can be seen during cell division
Microtubules
Found throughout the cytoplasm singly or in groups; provide structural support
Vacuole
Fluid-filled sacs of membrane that may contain anything from food being digested to oil droplets
Lysosomes
Look like vacuoles but contain digestive enzymes to remove waste from cell
Microbodies
Look like small vacuoles but contain various enzymes not involved in digestion
Microfilaments
Found in various places around the cytoplasm and are involved in movement and attachment to other cells
Ribosomes
Manufacture proteins; some are found throughout the cytoplasm and others are attached to the rough endoplasmic reticulum
Endoplasmic Reticulum
System of flattened tubules that are connected to nucleus and extend throughout much of the cytoplasm; has many functions but is primarily responsible for protein and lipid production, modification, and transportation
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