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Bellaire BIO9 Unit5/

Bellaire BIO9 Unit 5-6 Vocab Human Systems and Homeostasis

QuestionAnswer
behavioral responce A conscious (choice) response to an external stimulus.
cell division The process by which a cell divides to form two daughter cells. Upon completetion of the process, each daughter cell contains the same genetic material as the original cell and roughly half of its cytoplasm.
cell functions specifically, cellular communication, regulations, response and waste disposal.
cellular differentiation The structural and functional divergence of cells as they become specialized during a multicellular organism's development; dependent on the control of gene expression.
disease agents Any physical, chemical or biological factors that causes disease (pathogens).
embryo A developing stage of multicellular organisms; in humans, the stage in the development of offspring from the first division of the zygote until body structures begin to appear; about the 9th week of gestation.
environmental influence An external stimulus that can affect an organism or cell.
enzyme A class of proteirns serving as catalysts, chemical agents that change the rate of a reaction without being consumed by the reaction.
equilibrium The state of a system in which no further net change is occuring; result of counterbalancing forward and backward processes.
homeostasis The process of maintaining stable internal conditions.
hormone One of many types of circulating chemical signal in all multicellular organisms that are formed in specialized cells, travel in body fluids, and coordinate the various parts of the organism by interacting with target cells.
metamorphosis A biological process involving a conspicuois and relatively abrupt change in the animal's form or structure through cell growth and differentiation.
pH A measure of hydrogen ion concentration equal to -log [H+] and range in value from 0 to 14.
physiology The study of function in cells, organs, or entire organisms; the processes of life.
regulatory response a physiological (automatic) response to an external stimulus.
substrate A starting material in a chemical reaction.
transplantation To transfer an object from one place to another.
Created by: kdewey
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