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Bio(Ch.1)

TermDefinition
Biology ~ Study of living things, or organism
Organic substances ~ Living things or organisms that were once alive ~ To a chemist, an organic substance is a substance that contains carbon in complex combinations with hydrogen and other elements
Inorganic substances ~ substances that are neitherliving nor were ever alive
Life processes ~ All organisms carry-on similar activities called life processes, such as movement, ingestion, digestion, transport, respiration, synthesis, assimilation, growth, excretion, sensitivity, and reproduction
Movement ~ The movement of organisms help them to survive ~ Animals can move from place to place in search of food and shelter and mating
Ingestion ~ All organisms must have food to survive ~ The taking in of food by an organism is called ingestion
Digestion ~ The chemical process that changes complex food molecules into simpler molecules is called digestion Digestion makes many chemicals and enables the organism to release energy, grow, and repair itself *Digestion is essentially the same in all organisms*
Transport ~ All of the processes that movie usable substances and waste substances to and from cells as well as into and out of cells are called transport
Respiration ~ The process that release, transforms, and stores energy living things need to carry on in their activities is called respiration ~ During respiration, oxidation reactions within cells change glucose to simpler substances and release energy
Anaerobic respiration ~ All organisms carry on anaerobic respiration, reactions that one not require oxygen
Aerobic respiration ~ A process that requires oxygen, releases much more energy then does anaerobic respiration
Synthesis ~ All organisms combine, or synthesize, simple chemical substances to form more complex substances ~ Some of the energy released by respiration is used for this purpose
Secretion ~ The formation of special and usual substances used in other life processes are called secretion
Assimilation ~ The changing of the chemical substances into living matter is called is assimilation
Growth ~ All living things grow ~ Growth that usually involves the enlargement of cells and production of more cells
Excretion ~ The process that removes the metabolic wastes from cells and from body fluids are called excretion
Sensitivity (Regulation) ~ The ability of an organism to respond to changes in the environment is called sensitivity
Reproduction ~ The life activity by which organisms produce offspring is called reproduction
Asexual reproduction ~ Reproduction which involves only one parent, does not require sex cells
Organelles ~ The cells of organisms contain tiny structures called organelles ~ Both organelles and complex molecules within a cell divides when the cell divides
Metabolic activities ~ Reactions that occur in cells are called metabolic activities or metabolism
Anabolic ~ Constructive metabolic activities which tend to build up cells are called anabolic ~ This process is called anabolism
Catabolic ~ Destructive metabolic activities which expend energy and use up materials are called catabolic ~ This process is called catabolism
Special characteristics of life 1. Release, transform, and store energy. 2. Respond to stimuli from their internal and external environment. 3. Maintain a stable internal environment. 4. Vary genetically, depending on useful adaptations. 5. Evolve into new species.
Need for energy ~ Living things require a constant source of energy to move, to manufacture organic substances, to change digested food into protoplasm, and to carry on other metabolic activities
Response to stimuli ~ All living things respond to changes, what stimuli in both the internal and external environments ~ Responses to stimuli aid in survival of an organism in various ways
Stability of organization ~ Organisms usually puts this feedback systems that hope of them maintain a state of balance or a steady-state ~ The automatic maintenance of a steady-state by an organism is called homeostasis
Genetic variation ~ Genetic variations that hope an organism survive are called advantageous ~ These variations may result in specialized structural or chemical characteristics
Adaptation ~ The special characteristics of an organisms that enable it to survive in its environment are called adaptations
What is life? ~ Life is the use of energy to maintain a steady state and an organize a shin that is not readily break down
Created by: UltimateAbdul
 

 



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