THE NATURE OF MATTER
PROPERTIES OF WATER
CARBON COMPOUNDS
CHEMICAL REACTIONS
ENZYMES
100
The basic unit of matter
What is an atom?
100
Single most abundant compound in most living things; expands as it freezes
What is water?
100
Chemistry of carbon compounds
What is organic chemistry?
100

Process that changes one set of chemicals into another set of chemicals.

What is chemical reaction?

100
Substance that speeds up rate of chemical reaction. Work by lowering reaction's activation energy.
What is a catalyst?
200
Atoms of the same element that differ in the number of neutrons
What is an isotope?
200
One of the forces that draw water out of roots of plants and up into stems and leaves.
What is capillary action?
200
Formed by thousands or hundreds of thousands of smaller molecules
What is polymerization?
200
Elements or compounds produced by a chemical reaction
What is a product?
200
Reactants of enzyme-catalyzed reaction.
What is a substrate?
300
A substance formed by chemical combination of two or more elements in definite proportions.
What are chemical compounds?
300
Ions break away from the crystal and are surrounded by water molecules. Ions gradually disperse into water.
What is a solution?
300
Made of carbon, hydrogen, and oxygen; basic unit of monosacchrides
What is a carbohydrate?
300
A chemical reaction happen in plants - trap sunlight for energy.
What is photosynthesis?
300
Provides site where reactants can be brought together to react.
What is an enzyme?
400
Molecules are formed by this bond.
What is a covalent bond?
400
Mixtures of water and non-dissolved material.
What is a suspension?
400
Large/varied group of biological molecules that are generally not soluble in water. Mostly from carbon and hydrogen atoms; fats, oils, waxes.
What are lipids?
400
Energy needed to get reaction started.
What is activation energy?
400
Most common variable that affects enzymes that influence chemical reactions.
What is temperature?
500
Gecko's use this bond to balance the pull of gravity.
What are Van der Waals forces?
500
Indicate concentration of H+ ions in solution
What is a pH scale?
500
Macromolecules containing hydrogen, oxygen, nitrogen, carbon, phosphorus. Polymers assembles from monomers: nucleotide.
What is nucleic acid?
500
Living things are made of "this".
What is chemical compound?
500
Biomolecule of enzymes.
What is a protein?
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