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Vocabulary ch 3
Life Science
| Term | Definition |
|---|---|
| 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
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