any substance that forms hydrogen ions in water

smallest part of an element thst has the characteristics of that element; the basic building block of all matter

any substance that forms hydroxide ions in water and has a pH above 7

substance composed of atoms of two or more different elements that are chemically combined

chemical bond formed when two atoms share electrons

substance that can't be broken down into simpler chemical substances

atom or group of atoms that gain or lose electrons; has an electrical charge

chemical bond formed by the attractive forces between two ions of opposite charge

atoms of the same element that have different numbers of neutrons in the nucleus

all of the chemical reactions that occur within an organism

combination of substances in which individual components retain their own properties

group of atoms held together by covalent bonds; has no overall charge

positively charged center of an atom composed of neutrons and positively charged protons, and surrounded by negatively charged electrons

measure of how acidic or basic a solution is; scale ranges from below 0 to above 14; solution with pH above 7 is basic and a pH above 7 is acidic

mixture in which one or more substances (solutes) are distributed evenly in another substance(solvent)

net, random movement of particles from an area of higher concentration to an area of lower concentration, eventually resulting in even distribution

result of diffusion where there is continuous movement of particles but no overall change in concentration

weal chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms

molecule with and unequal distribution of charge, resulting in the molecule having a positive end and a negative end

basic building blocks of protein molecules

organic compound used by cells to store and release energy

type of protein found in all living things that changes the rate of chemical reactions

compounds with the same simple formula but different three-dimensional structures resulting in different physical and chemical properties

Any of a group of organic compounds.

a complex organic substance present in living cells, esp. DNA or RNA, whose molecules consist of many nucleotides linked in a long chain.

a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.

covalent bond formed between two amino acids

large molecule formed when many smaller molecules bond together

A molecule composed of polymers of amino acids joined together by peptide bonds.

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Biology Vocab 1

Term	Definition
acid	any substance that forms hydrogen ions in water
atom	smallest part of an element thst has the characteristics of that element; the basic building block of all matter
base	any substance that forms hydroxide ions in water and has a pH above 7
compound	substance composed of atoms of two or more different elements that are chemically combined
covalent bond	chemical bond formed when two atoms share electrons
element	substance that can't be broken down into simpler chemical substances
ion	atom or group of atoms that gain or lose electrons; has an electrical charge
ionic bond	chemical bond formed by the attractive forces between two ions of opposite charge
isotopes	atoms of the same element that have different numbers of neutrons in the nucleus
metabolism	all of the chemical reactions that occur within an organism
mixture	combination of substances in which individual components retain their own properties
molecule	group of atoms held together by covalent bonds; has no overall charge
nucleus	positively charged center of an atom composed of neutrons and positively charged protons, and surrounded by negatively charged electrons
pH	measure of how acidic or basic a solution is; scale ranges from below 0 to above 14; solution with pH above 7 is basic and a pH above 7 is acidic
solution	mixture in which one or more substances (solutes) are distributed evenly in another substance(solvent)
diffusion	net, random movement of particles from an area of higher concentration to an area of lower concentration, eventually resulting in even distribution
dynamic equilibrium	result of diffusion where there is continuous movement of particles but no overall change in concentration
hydrogen bond	weal chemical bond formed by the attraction of positively charged hydrogen atoms to other negatively charged atoms
polar molecule	molecule with and unequal distribution of charge, resulting in the molecule having a positive end and a negative end
amino acids	basic building blocks of protein molecules
carbohydrate	organic compound used by cells to store and release energy
enzymes	type of protein found in all living things that changes the rate of chemical reactions
isomers	compounds with the same simple formula but different three-dimensional structures resulting in different physical and chemical properties
lipids	Any of a group of organic compounds.
nucleic acid	a complex organic substance present in living cells, esp. DNA or RNA, whose molecules consist of many nucleotides linked in a long chain.
nucleotide	a compound consisting of a nucleoside linked to a phosphate group. Nucleotides form the basic structural unit of nucleic acids such as DNA.
peptide bond	covalent bond formed between two amino acids
polymer	large molecule formed when many smaller molecules bond together
protein	A molecule composed of polymers of amino acids joined together by peptide bonds.

Created by: cj_bucks319

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