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Science Vocab

Vocabulary words in cells book chapter 1 for Mr. Borushko's class

TermDefinition
spontaneous generation hypothesis that states that life can spring from nonliving matter
metabolism sum total of all chemical activities in organism
ingestion taking in food; eating
Digestion process by which food is broken down into simpler substances
Respiration process in which simple food substances such as glucose are broken down and the energy they contain is released
Excretion process of getting rid of waste materials
life span maximum length of time an organism can be expected to live
stimulus signal to which an organism reacts; change in the environment
response some action or movement of an organism brought on by a stimulus
sexual reproduction reproduction usually involving two parents in which a sex cell from each parent unite to form offspring
asexual reproduction reproduction requiring only one parent
homeostasis ability of an organism to keep conditions inside its body the same, even though conditions in its external environment change
elements pure substances that cannot be separated into simpler substances by ordinary chemical processes
compounds two or more elements chemically combined
organic compounds compound found in living things that contain the element carbon
carbohydrates energy-rich substances found in foods such as vegetables, cereal grains,and photosynthesis
fats substance that supplies the body with energy and also helps support and cushion the vital organs in the body
oils energy-rich compound that is liquid at room tempature
proteins substances used to build and repair cells; made up of amino acids
amino acids building block of protein
enzyme chemical substances that helps control chemical reactions
nucleic acids large, organic compound that stores information that helps the body make the proteins that it needs; DNA or RNA
DNA nucleic acid that stores information needed to build proteins and carries genetic information about an orginism
RNA nucleic acid that "reads" the genetic information carried by DNA and guides the protein-making process
Created by: BellaG