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2nd quarterly test study cards
Cell functions
14
Science
7th Grade
01/24/2013

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Term
chromosomes
Definition
holds the DNA and passes traits along to new cells
Term
ribosomes
Definition
they make proteins
Term
DNA
Definition
it carries genetic information
Term
chloroplast
Definition
cell organelle containing chlorophyll that is involves in the process of photosynthesis
Term
cell membrane
Definition
supports and protects the cell. also, allows passage in and out of the cell.
Term
nucleus
Definition
the control center of the cell
Term
nucleolus
Definition
the little nucleus
Term
mitochondria
Definition
the place where energy is made. the powerhouse of the cell
Term
mitosis
Definition
process in which the nucleus separates into two nuclei. the formation of two new daughter cells
Term
meiosis
Definition
the process that produces sperm and egg cells
Term
cell wall
Definition
outermost boundrie that is made of cellulose and found only in plant cells
Term
photosynthesis
Definition
process in which plant organisms use energy from the sun to make their own food
Term
respiration
Definition
the process in which food is broken down and energy is released
Term
vacuole
Definition
large sac in the cell that stores and breaks down food water enzymes and other materials
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