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Mackenzie and Cell vocabulary
cells
20
Science
6th Grade
04/11/2011

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Term
cell
Definition
basic unit of structure and function of life.
Term
prokaryotic
Definition
cells that do not have membrane-bound structures.
Term
eukaryotic
Definition
cells that have membrane-bound structures.
Term
unicellular
Definition
made up of only one cell
Term
multicellular
Definition
made up of many cells
Term
cell membrane
Definition
encloses the cell; allows some materials to pass through it, but not others
Term
cytoplasm
Definition
gel-like fluid that takes up most of the space in a cell
Term
organelles
Definition
carry out the activities that keep the cell alive
Term
nucleus
Definition
structure usually located near the center of an animal cell; home to chromosomes
Term
chromosomes
Definition
genetic structures that contain the information ussd to direct cell activity and make new cells; contains dna
Term
nuclear membrane
Definition
surrounds and protects the nucleus
Term
nucleolus
Definition
found inside the nucleus. is responsible for making ribosomes
Term
vacuoles
Definition
fluid-filled structures temporarily store different substances needed by the cell; usually have many small vacuoles
Term
mitochondria
Definition
use oxygen to transform the energy in food to a form the cell can use to carry out activities; powerhouse
Term
ER/ribosomes
Definition
produce important products for the cell, including protiens and lipids; internal delivery system
Term
golgi body
Definition
help package products from the ER and distribute them around the cell or outside of it.
Term
cell wall
Definition
provides extra support for the cell and gives it shape. Plant cell.
Term
chloroplast
Definition
food-making structures of a plant cell that contains green pigment, chlorophyll.
Term
chlorophyll
Definition
captures the energy of sunlight and uses it to drive a chemical reaction that combines water and carbon dioxide to make glucose-simple sugar plants use as food. Photosynthesis
Term
microscopic
Definition
so tiny you need a microscope to see them
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