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Vocabulary ch 3

Life Science

element a substance that can not be broken down into simpler substances
compound when two elements are combined chemically
carbohydrates a elements made up of carbon, hydrogen, and oxygen
lipids elements made up of carbon, hydrogen, and oxygen
protien large organic molecules mad eof hydrogen, oxygen, nitrogen, and, inm sme other cases, sulfur
amino acids protein molecules that are made up smaller molecules molecules
enzyme that speeds up a chemical reaction in a living
Nulceic acids are very long organic made of carbon, nitrogen, oxygen, hydrogen, phosphurus
Dna is a genetic that carries information about an organism
Rna its a chemical found in cytoplasm
selectively permable some substances go thru the membrane while others can not
diffusion main method which molecules move across the membrane
omosis is a diffusion of water molecules thru the preamable membrane
passive transport the movement dissolved material thru a cell without using energy
active transport the movement of dissoleved using celluar energy
photosynthesis cell captures energy in sublight uses to make food
autotroph an organism that makes it own food
heterotroph an organism that feeds off of other animals
pigment color chemical compounds that absorb light
chlorophyll the main photosynthetic pigment in chloroplasts
Created by: x.montserrat.x