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biology

TermDefinition
cell Basic unit of life
cell theory A theory in biology that includes one or both of the statements that the cell is the fundamental structural and functional unit of living matter and that the organism is composed of autonomous cells with its properties being the sum of those of its cells
organelle A specialized cellular part
organism An individual constituted to carry on the activities of life by means of parts or organs more or less separate in function but mutually dependent
cytology study of cells
nucleus controls almost all cell activity
diffusion the passive movement of particles
osmosis movement of water
active transport the movement of a chemical substance by the expenditure of energy against a gradient in concentration or in electrical potential across a plasma membrane
phagocytosis ingest or engulf other cells or particles.
pinocytosis the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane.
semipermable a type of biological or synthetic, polymeric membrane that will allow certain molecules or ions to pass through it by diffusion
mitochondria power house of the cell
ribosomes proteins are made there
cell wall protects the cell (plant cell)
viruses small infections throughout the body.
centriole helps with cell division
chloroplasts photosynthesis occurs in this organelle
phylum level of classification
endoplasmic reticulum network of membranous tubules within the cytoplasm of a eukaryotic cell, continuous with the nuclear membrane
Created by: alta11
 

 



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