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body structure

definition human cell

TermDefinition
plasma membrane selectively permeable membrane (allows only certain substances through) made of phospholipids and proteins surrounding the entire cell
cytoplasm gel-like fluid filling the inside of the cell that is comprised primarily of water, with electrolytes, metabolic waste products, and nutrients dissolved within it
nucleus large, spherical body near the center of the cell containing genetic material in the form of DNA
nuclear membrane double-layered, porous membrane surrounding the nucleus
nucleolus dark, small dense body within the nucleus without an enclosing membrane, most cells contain one to four.
mitochondria "powerhouse" of the cell/power plant, elongated, rod-shaped bodies filled with fluid containing DNA
ribosomes small granules of RNA found in the nucleolus or cytoplasm
cilia short, hair-like microtubes projecting from the cell membrane
flagella long, hair-like microtubes projecting from the cell membrane
endoplasmic reticulum connection of membranes fluid-filled, flat sacs and tubular channels, connects the cell membrane to the nucleus membrane
rough endoplasmic reticulum has ribosomes
smooth endoplasmic reticulum does not have ribosomes
Golgi apparatus four to six flat membranes sacs, connected to the endoplasmic reticulum; typically found near the nucleus.
lysosomes "stomach" of the cell, small sacs surrounded by the membranes created by the Golgi apparatus
cytoskeleton division of the cytoplasm forming two separate cells
centrioles rod-shaped bodies (usually two) made of microtubules found near the nucleus help separate the chromosomes during cell division
Created by: timya scales
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