Question Answer
metabolism all of the physical and chemical reactions that produce and use energy
homeostasis the steady state condition an organism works
atoms smallest units that have the properties of a element
proton positive charge, make up nucleus, atomic number
neutrons in nucleus
electrons negative charge
solute substance that dissolves when mixed with another substance
solvent solute is dissolved in a liquid such as water
polar describes a molecule with regions having different charges
non polar carry no partial charge
hydrogen bond type of weak chemical bond in which a hydrogen atom of one molecule is attracted to an electronegative atom of another molecule
hydrophilic readily dissolving in water
hydrophobic not able to dissolve in water
cohesion tendency for molecules of the same material to stick together
macromolecules large organic molecules made of sub units
carbohydrates sugars
monosaccharide simple sugar
monomers individual molecule that binds to other molecules to form a polymer
polymers general term for a macromolecule composed of many chemically bonded mohomers
polysaccharide carbohydrate composed of three or more monosaccharides
proteins made of amnio acids coded by genes
enzymes proteins that catalyzes and regulates the rate of metabolic reactions
nucleotides building blocks of nucleic acids that include sugar, phosphate, and nitrogen base
theory of evolution theory that all organisms on earth today are descendants of a single ancestor that arose in the distant past
bio chapter 2

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