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cytology words

i need to know it :v

TermDefinition
Cytology the branch of biology concerned with the structure and function of plant and animal cells.
Cell the smallest structural and functional unit of an organism, typically microscopic and consisting of cytoplasm and a nucleus enclosed in a membrane. Microscopic organisms typically consist of a single cell, which is either eukaryotic or prokaryotic.
Organelle any of a number of organized or specialized structures within a living cell.
Organism Organism is an individual living thing, such as a plant, animal, bacterium, protest, or fungus.
Unicellular consisting of a single cell.
Multicellular having or consisting of many cells.
Prokaryotic a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles.
Prokaryotes a microscopic single-celled organism that has neither a distinct nucleus with a membrane nor other specialized organelles. Prokaryotes include the bacteria and cyanobacteria.
Eukaroytic An organism whose cells contain a nucleus surrounded by a membrane and whose DNA is bound together by proteins (histones) into chromosomes.
Eukaryotes an organism consisting of a cell or cells in which the genetic material is DNA in the form of chromosomes contained within a distinct nucleus. Eukaryotes include all living organisms other than the eubacteria and archaebacteria.
Cell theory a basic tenet of modern biology, that cells are the basic units of structure and function in living organisms.
Virus A minute organism that consists of a core of nucleic acid surrounded by protein.
Tissues any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.
Organs a part of an organism that is typically self-contained and has a specific vital function, such as the heart or liver in humans.
Diffusion/Passive transport is a movement of ions and other atomic or molecular substances across cell membranes without need of energy input.
Osmosis a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concentrated solution into a more concentrated one, thus equalizing the concentrations on each side of the membrane.
Active transport the movement of ions or molecules across a cell membrane into a region of higher concentration, assisted by enzymes and requiring energy.
Semi-permeable A membrane that is selectively permeable, being permeable to only certain molecules and not to all molecules.
Phagocytosis the ingestion of bacteria or other material by phagocytes and amoeboid protozoans.
Pinocytosis the ingestion of liquid into a cell by the budding of small vesicles from the cell membrane.
Created by: Stephanie_14
 

 



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