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Unit 2 Vocab Words

Vocabulary words

TermDefinition
Biology study of life
Organism an individual animal, plant, or single-celled life form
Biotic (factor) are the living components of an ecosystem.
Abiotic (factor) abiotic factors are non-living
Prokaryotic/Prokaryote e is a unicellular organism that lacks a membrane-bound nucleus, mitochondria, or any other membrane-bound organelle.
Eukaryotic/Eukaryote e ells also contain other membrane-bound organelles such as mitochondria and the Golgi apparatus, and in addition, some cells of plants and algae contain chloroplasts.
Unicellular Made of a single cell
Multicellular made of many cells
Autotrophic/Autotroph An organism capable of synthesizing its own food from inorganic substances using light or chemical energy. Green plants, algae, and certain bacteria are autotrophs.
HeterotrophicHeterotroph Organisms that depend on other organisms for their food
Aerobic process that requires oxygen
Anaerobic This type of respiration happens when oxygen is absent
Regulation a coordinated response to a stimulus
Reproduction the process by which organisms produce new individuals of the same kind
Sexual A mode of reproduction involving the fusion of female gamete (ovum) and male gamete (spermatozoon), which forms a zygote that potentially develops into an offspring genetically distinct from the parent organisms.
Asexual reproduction is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it does not involve the fusion of gametes, and almost never changes the number of chromosomes.
Nutrition The process by which a living organism assimilates food and uses it for growth and for replacement of tissues.
Excretion is the process by which metabolic wastes and other non-useful materials are eliminated from an organism.
Transport The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration
Synthesis The production of an organic compound in a living thing, especially as aided by enzymes. Supplement.
Growth The gradual increase (e.g. in size or number) of an animal or vegetable body over time. (2) The development of an organism, e.g. of a plant from a seed to full maturity.
Metabolism the sum of the chemical reactions that take place within each cell of a living organism and that provide energy for vital processes and for synthesizing new organic material.
Homeostasis the ability to maintain a constant internal environment in response to environmental changes
Respiration a series of chemical reactions that happen inside cells in which food molecules are oxidised to release energy for cell
Created by: 1011934
 

 



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