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Chemistry of Life
Chemistry of Life II
Water: Cradle of Life
Molecules of Life
Scientific Method
100
The smallest particle into which a substance can be divided and still retain all of its chemical properties.
What is an atom?
100
The nucleus of an atom is composed of these two subatomic particles.
What are protons & neutrons?
100
These bonds hold the individual water molecules together.
What are Hydrogen Bonds?
100
This atom makes up the core in all organic molecules.
What is Carbon?
100
The first step in all scientific processes. This step leads to the formulation of hypotheses.
What is Observation?
200
An atom that has gained or lost one or more electrons.
What is an Ion?
200
These chemical substances in cells minimize the changes in concentrations of H+ and OH- (pH Balance)
What are Buffers?
200
This property of water causes it to heat up more slowly than other compounds and hold its temperature longer.
What is Heat Storage?
200
This functional group is not present in either proteins or carbohydrates.
What is the Carbonyl group?
200

This is an educated guess based on observations.

What is an hypothesis?

300
The force that bonds together water molecules.
What are Hydrogen Bonds?
300
This type of bonding involves the sharing of one or more pairs of electrons between atoms.
What are Covalent Bonds?
300
The attraction of water molecules to one another because of the hydrogen bonding.
What is Cohesion?
300
The forming of a covalent bond between two monomers to form a polymer and release of a water molecule.
What is Dehydration Synthesis (Condensation)?
300
Expected consequences of true hypotheses.
What are predictions?
400
The electrons in the outer shell of an atom that allow for bonding.
What are Valence Electrons?
400
An atom that has lost one or more neutrons?
What is an Isotope?
400
These kinds of molecules are attracted to water.
What are hydrophyllic molecules?
400
These are the building blocks of all proteins (there are 20 of them).
What are Amino Acids?
400
The fourth step in scientific method. This is how the hypotheses are proven true or false.
What is Testing?
500
These bonds hold together items that form crystals, such as table salt.
What is an Ionic Bond?
500
A group of atoms linked together by chemical bonds, ionic bonds, covalend bonds, and/or hydrogen bonds.
What are molecules?
500
These types of molecules are repulsed by water.
What are hydrophobic molecules?
500
These are the bonds that hold together proteins.
What are Peptide Bonds?
500
A portion of an experiment where no variables are altered.
What are Controls?