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The Chemistry of Life

Across
Basic unit of matter.
Forms when electrons are shared between atoms.
A process that changes one set of chemicals into another set of chemicals.
Mostly made from carbon and hydrogen atoms
Join together to make polymers
The elements or compounds that enter into a chemical reaction.
Indicates the concentration of H+ ions in solutions.
A negatively charged atom
Down
The proteins are polymers of molecules.
The smallest unit of most compounds.
When molecules are close together, a slight attraction can develop between the oppositely charged regions of nearby molecules.
Macromolecules containing hydrogen, oxygen, nitrogen, carbon, and phosphorus.
Macromolecules that contain nitrogen and also hydrogen, oxygen, and carbon.
The substance that is dissolved.
Chemists call this the _______ that is needed to get a reaction started.
An attraction between molecules of different substances.
Contains the sugar deoxyribose.
Contains the sugar ribose.
A substance formed by the chemical combination of two or more elements in definite proportions.
A pure substance that consists entirely of one type of atom