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Biology Chapter 2

Horizontales
Bonds found in water molecules
Measure of a substances acidity or alkalinity
Mixture where all components are evenly distributed
Attaction between molecules of the same substance
Chemical reations involve changes in chemical _______.
Smallest unit of most compounds
A pure substance with only one type of atom
Proteins that act as biological catalysts
Glucose is this type of macromolecule
Where the protons and neutrons reside
Energy needed to start a reaction
Enzymes are this type of macromolecule
Attraction between molecules of different substances
One end is postitive, the other is negative
What is being dissolved in a mixture
Organic chemistry is the study of compounds made of this element
Verticales
Bond where electrons are shared between atoms
Compounds that enter into a chemical reaction
Compounds produced by a chemical reaction
7.5 - 14 on pH scale
Cell membranes are primarily this macromolecule
Two or more elements chemically combined
Substance that speeds up the rate of a chemical reaction
The reactants of enzyme-catalyzed reactions
Water mixed with non-dissolved materials
Negatively charged particle that orbits the nucleus
2 or more elements or compounds physically (not chemically) combined
Bond where one or more electrons is transferred from one atom to another
Postively or negatively charged atoms
What something is being dissolved in
0 - 6.5 on pH scale
Postitively charged part of an atom
The building blocks of matter