Atoms and Bonding
The three subatomic particles that make up atoms.
What are protons, neutrons and electrons?
What is cohesion?
a solution with pH 3 is described this way.
What is acidic?
What are monosaccharides?
Lipids are generally described as this in water.
What is hydrophobic?
The monomers of proteins.
What are amino acids?
The two types of nucleic acids.
What are DNA and RNA?
A bond formed when atoms share electrons.
What is a covalent bond?
Water sticking to other substances (like glass) helps it climb in thin tubes.
What is adhesion?
A substance that releases OH- in water.
What is a base?
Table sugar's proper chemical name.
What is sucrose?
Fats are built from glycerol and these.
The bond linking amino acids together.
What is a peptide bond?
The three parts of a nucleotide.
What are a sugar, a phosphate group, and a nitrogenous base?
A bond formed when one atom donates an electron to another.
What is an ionic bond?
The amount of heat required to change water's temperature by 1o C is high; name this property.
What is high specific heat?
The scale is logarithmic; compared to pH 6, pH 4 is this many times more acidic.
What is 100 times?
A chemical reaction in which molecules combine by removing water.
What is a dehydration reaction?
Difference between saturated and unsaturated fats.
What is "no double bonds" vs. "one or more C=C double bonds?
The 3-D shape of a polypeptide determines this.
What is its function?
Base-pairing in DNA.
What are A-T and C-G?
Weak attractions between a slightly positive H and a slightly negative atom.
What are hydrogen bonds?
When water molecules surround ions and pull them apart, they form this.
What is an aqueous solution?
What are buffers?
The storage polysaccharide in plants vs. animals.
What is starch (plants) and glycogen (animals)?
The lipids that forms cell membranes.
What is a phospholipid?
Enzymes lower this to speed reactions.
What is activation energy?
What is a phosphate group?
What is the atomic number?
The reason ice floats: density changes due to this structure.
What is a crystalline lattice from hydrogen bonding that spaces molecules apart?
This system in the body contains both strong acids and strong bases.
What is the digestive system?
This structural polysaccharide strengthens plant cell walls.
What is cellulose?
This class of lipids includes cholesterol and many hormones.
What are steroids?
The region where a substrate binds on an enzyme.
What is the active site?
The attribute of DNA that helps it maintain it's shape.
What is hydrophobic?