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Cell structures 7th

Cell structure terms to know

Cell the basic unit of life. all living things made of cells. smallest thing alive
unicellular single celled organisms. ex:bacteria
multicellular organism made of may specialized cells ex:human tree fish
organelles tiny structures that make up a cell ex:cell wall, cell membrane
cell wall found in plant cells, not animal cells. provides protection and support for the cell. does not control what goes in.
nucleus controls all the cells activities. contains a complete set of DNA. looks like large dark ball
cell membrane controls what goes in and out of the cell. located just inside cell wall for plant cells. forms outer covering for animal cells. provides protection and support for the cell. allows for homeostasis within the cell.
chromosomes thick rod like objects in the nucleus. made of coiled DNA. passes on traits to new cells.
cytoplasm clear thick jelly like substance that fills the cell. the cell organelles float in it.
endoplasmic reticulum a system of passages that lead from the nucleus out into the cell. most ribosomes are located here. carries proteins made by the ribosomes throughout the cell. looks like a maze around the nucleus.
Ribosome make proteins for cell growth and repair. most are attached to the ER and others float throughout the cell. looks like small black dots.
mitochondria oval structure which supplies most of the energy for the cell. called the "powerhouse" of the cell. looks like a sausage with zig zags.
Golgi bodies receives protein from ER , packages and sends them throughout the cell. looks like a stack of pancakes.
Vacuoles large round sacks. storage tanks for food, water, or waste. Plant cells have a very large one in the center, some animals have some small ones. looks like clear bubbles
lysosomes found in animal cells and some plant cells. break down food into particles. digest old cell parts.
Chloroplasts green structures only found in plant cells. contain chlorophyll which take in the sun's energy and make food. look like green jelly beans.
Chlorophyll a green pigment in chloroplasts which takes in sunlight and produces food for the plant.
Prokaryotes Organisms whose cells lack a nucleus. the DNA is out in the cytoplasm ex:bacteria
Eukaryotes Organisms whose cells contain a nucleus. all organisms except bacteria.
Created by: Awseomus