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Biology : Chapter 1&2 Vocabulary

Puzzle Type: Educational
Teacher: Mrs. Riebe
Across
The compounds created during a chemical reaction by rearranging the atoms of the reactants
Single sugar molecules (glucose)
applies to a well-tested explanation that unifies a broad range of observations and hypotheses and that enables scientists to make accurate predictions about new situations
When the atoms share two or more electrons
macromolecules that contain nitrogen as well as carbon, hydrogen, and oxygen. Proteins are polymers of molecules called amino acids
The variable that is observed and that changes in response to the independent variable
The combination of chemical reactions through which an organism builds up or breaks down materials
precursors to proteins (bond together in long chains to create a protein)
fats, oils and waxes made mostly from carbon and hydrogen which store energy atoms.
Atoms of the same element that differ in the number of neutrons they contain.
Down
numbers obtained by counting or measuring.
an attraction between molecules of the same substance.
All organisms need to keep their internal environment relatively stable, even when external conditions change dramatically.
proteins that act as biological catalysts. Enzymes speed up chemical reactions that take place in cells. Like other catalysts, enzymes act by lowering the activation energies,
Macromolecule made of C, H, O and is a source of energy for an organism
A substance that dissolves the solute (water dissolves salt or sugar)
a scientific explanation for a set of observations that can be tested in ways that support or reject it.
elements or compounds that enter into a chemical reactions
formed when one or more electrons are transferred from one atom to another
a substance that speeds up the rate of a chemical reaction.