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Luke Emmert
Ch. 4 Life science vocab
17
Science
8th Grade
03/10/2014

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Term
diffusion
Definition
movement of particles from an area of high concentration to low concentration.
Term
osmosis
Definition
diffusion of water through the cell membrane
Term
passive transport
Definition
diffusion of particles through the proteins.
Term
active transport
Definition
movement of particles through proteins against normal direction of diffusion
Term
endocytosis
Definition
cell membrane surrounds a vessel and encloses it.
Term
exocytosis
Definition
vesicles are formed at the endoplasmic reticulum and carry particles to cell membrane
Term
photosynthesis
Definition
capture light from the sun and use it to create food-energy
Term
cellular respiration
Definition
a way to get energy from food to create energy using oxygen
Term
fermentation
Definition
A way to get energy from food without using oxygen.
Term
cell cycle
Definition
Life cycle of a cell
Term
chromosome
Definition
Organised structures of DNA
Term
binary fission
Definition
Splitting into two parts
Term
homologous chromosomes
Definition
Similar chromosomes
Term
chromatids
Definition
Two copies of a chromosome
Term
centromere
Definition
Place where chromatids are held together
Term
mitosis
Definition
Complicated process of chromosome separation
Term
cytokenisis
Definition
The process of a cytoplasm splitting in two at the end of mitosis
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