structures in the nucleus made of DNA and protein.

the nucleus is surronded by thos double mebrane, two phospholipid bilayers

the site where DNA is concentrated when it is in the process of making ribosomal RNA

organells made of protein and RNA that direct protein synthesis in the cytoplasm

tiny organelles that transfer energry from organic molecules to adenosine triphosphate (ATP)

endoplasmic reticulum

(ER) a system of memnranous tubes and sacs- functions as a highway where molecules move from one cell to another- two types: rough or smooth ER

system of flattened, mebranepous sacs (mailroom)?

vesticles that bud from the Golgi apparatus and that contain digestive enzymes.

network of thin tubes and filaments that give shape to the cell

hollow tubes made of a protein called tubulin- they hold organelles in place, maintain a cells shape and act as tracks that guide organelles and molecules as they move within the cell

long threads of the beadlike protein actin and are linked end to end and wrapped around each other like two strands of rope- ontribute to cell movement

hairlike structure that extend from the surface of the cell where they assist in movement- short and are preszent in large numbers on certain cells

hairlike structure that extend from the surface of the cell where they assist in movement- longer and are far less numerous on the cells

consist of two short cylinders of microtubes at right angles to each other and are situated in the cytoplasm near the nuclear envelope

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Ch 4 Section 3

Question	Answer
phospholipid bilayer	double layer of cell membrane?
chromosome	structures in the nucleus made of DNA and protein.
nuclear envelope	the nucleus is surronded by thos double mebrane, two phospholipid bilayers
nucleous	the site where DNA is concentrated when it is in the process of making ribosomal RNA
ribosome	organells made of protein and RNA that direct protein synthesis in the cytoplasm
mitochondrion	tiny organelles that transfer energry from organic molecules to adenosine triphosphate (ATP)
endoplasmic reticulum	(ER) a system of memnranous tubes and sacs- functions as a highway where molecules move from one cell to another- two types: rough or smooth ER
Golgi apparatus	system of flattened, mebranepous sacs (mailroom)?
lysosome	vesticles that bud from the Golgi apparatus and that contain digestive enzymes.
cytoskeleton	network of thin tubes and filaments that give shape to the cell
microtubule	hollow tubes made of a protein called tubulin- they hold organelles in place, maintain a cells shape and act as tracks that guide organelles and molecules as they move within the cell
microfilament	long threads of the beadlike protein actin and are linked end to end and wrapped around each other like two strands of rope- ontribute to cell movement
cilium	hairlike structure that extend from the surface of the cell where they assist in movement- short and are preszent in large numbers on certain cells
flagellum	hairlike structure that extend from the surface of the cell where they assist in movement- longer and are far less numerous on the cells
centriole	consist of two short cylinders of microtubes at right angles to each other and are situated in the cytoplasm near the nuclear envelope

Created by: caseydingwall23

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