Biology Ch. 2 The Chemistry of Life

a substance that produces hydroxide ions in solution

the negatively charged particle in an atom

the study of matter and the changes it experiences

which is true about enzymes

Which of the following is NOT part of a nucleotide

which is NOT an example of a chemical change

in a solution, the substance that does the dissolving is called the

the outermost electrons in an atom

which is not an example of a physical change

a compound held together by opposite electrical charges is a

an atom is classified its number of

a pure substance made of only one kind of atom

nucleotides hook together to form both

the attraction of one water molecule for another is known as

the positively charged particle in an atom

the building blocks of matter

organic compounds all contain the element

in which type of reaction do the products have less energy than the reactants

a substance that produces hydrogen ions in solution

an ion is

the physical stuff that makes up everything in the universe is known as

what is NOT an example of a carbohydrate

covalent compounds form when electrons are

a substance that decreases the activity of an enzyme

which is the most significant element for living things

lipids include

which of the following is NOT a smaller part of an atom

which type of fat contains single bonds

the main purpose of carbohydrates for living things

temperature is a measurement of