Chemistry of Life
Chemistry of Life II
Water
Molecules of Life
Macromolecules
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
The property of water that states that water has positive and negative regions.
Polarity
100
List the 4 macromolecules
Carbs, lipids, proteins, nucleic acid
100
what element is found in proteins but not lipids
What is Nitrogen?
200
An atom that has gained or lost one or more electrons.
What is an Ion?
200
A group of atoms linked together by chemical bonds.
What are molecules?
200
This property of water causes it to heat up more slowly than other compounds and hold its temperature longer.
High heat capacity
200
Which macromolecule contains CHONP
Nucleic acid
200
What macromolecule plays a key central role as a quick energy source in the human body.
What are carbohydrates?
300
The electrons in the outer shell of an atom that allow for bonding.
What are Valence Electrons?
300
In the chemical formula 6CO2, what is the coefficient?
6
300
The attraction of water molecules to one another because of the hydrogen bonding.
What is Cohesion?
300
What three elements do all macromeluces contain?
carbon, hydrogen, and oxygen
300
These are the building blocks of all proteins (there are 20 of them).
What are Amino Acids?
400
What is a positive ion?
An atom that has lost an electron
400
What is the monomer of a carbohydrate?
Monosaccharide
400
The force that bonds together water molecules.
What are Hydrogen Bonds?
400
What is the monomer of a lipid?
Fatty acid
400
What is the difference between a monomer and a polymer
A monomer is a single unit, whereas a polymer is made up of multiple monomers
500
Which electrons determine how an atom reacts with other atoms?
Electrons in the outer shell or valence electrons?
500
Write the balanced equation for this chemical reaction.
2Al2O3 --> 4Al + 3O2
500
Name that property: water molecules stick to other things
Adhesion
500
Name this polymer.
triglyceride
500
Give two examples of nucleic acids.
DNA, RNA