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science
SCIENCE
19
Science
7th Grade
10/31/2013

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Term
semi permeable
Definition
only allowing certain molecules pass in and out
Term
vesicle
Definition
the sac formed around a large particle to allow a cell to take in or remove the particle
Term
passive transport
Definition
the movement of substances across the cell membrane without use of energy
Term
osmosis
Definition
the diffusion of water through a cells membrane
Term
diffusion
Definition
the passive transport movement of particles from areas of high concentration to areas of low concentration
Term
active transport
Definition
the movement of substances across the cell membrane the requires the cell to use energy
Term
endocytosis
Definition
the active transport process by which a cell membrane surrounds and encloses a large particle to bring in into a cell
Term
mitochondria
Definition
the organelle in eukaryotes where cellular respiration takes place.
Term
ATP
Definition
the substances that supplies energy to fuel the cells activites
Term
celluar respiration
Definition
the process use to produce energy or to break down food that requirs oxygen
Term
fermentation
Definition
the process cell that use to produce energy or to break down food without oxygen
Term
chloroplast
Definition
the organelle where photosythesis takes place
Term
gulcose
Definition
the food that plants make for themselves
Term
cell cycle
Definition
the life stages of a cell that consits of its growth
Term
homologous chromosomes
Definition
pairs of similar chromosomes
Term
mitosis
Definition
the process of cell division that forms two new nuclei
Term
meiosis
Definition
a process in cell division during which the number resulting in the reproduction
Term
exocytosis
Definition
the active transport porcess by which a cell gets rid of larde particles
Term
cytokinesis
Definition
the division of cytoplasm
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