Protons = nucleus
Neutrons = nucleus
Electrons = electron cloud
What is an ionic bond?
Activation energy
What type of bonds are INSIDE of water
Name the four macromolecules
lipids, carbohydrates, proteins, and nucleic acids
The atomic number tells you the number of what in an atom?
Protons
Rank the bonds from strongest to weakest:
Double, Single, Triple and Covalent, Hydrogen, Ionic
Triple, Double, Single
and
Ionic, Covalent, Hydrogen
What speeds up the rate of a chemical reaction without being used up in one? What do we call biological versions of these that are used in living things?
Catalyst
Enzyme
Why does ice float on water?
Solid water has a lower density than liquid water
Polymers are made up of ____________.
Monomers
Left of the stair step
Ionic Bonds form between what types of elements
Metal and nonmetal
The total energy of the reactants is lower than the total energy of the reactants in what type of reaction?
exothermic
Cohesion and Adhesion
What are the main function of each macromolecule
Protein: enzymes and bio-machinery of cells
Carbohydrates: short term energy storage and structural components of cells
Lipids: long term energy storage
Nucleic acid: information storage of the cell
What subatomic particle is changed when you have an ion? What is an anion? What is a cation?
The electrons
Anion: Negative ion
Cation: Positive ion
The law of conservation of matter states that the products and reactants must have ________ numbers of each element.
Equal
List 3 conditions that we tested in our lab to see how the affected the enzymes ability to work?
pH (acid), temperature (heat), and salt concentration
What types of molecules dissolve in water?
What is the monomer of proteins? Nucleic acid? Carbohydrates? Lipids?
Amino acids, nucleotides, monosaccharides, fatty acids
If titanium has 22 protons, 28 neutrons, and 22 electrons, is it considered to be an atom, ion, or isotope?
Isotope
Calculate the difference of electronegativity between carbon and sulfur. What type of bond is this?
0.3; nonpolar covalent
What macromolecule has a role of being an enzyme?
Protein
Accepts = bases
______________ reactions build polymers. ______________ reactions break down polymers.
Hydrolysis