Biomolecules
Protein, lipids, carbohydrates, nucleic acids
What are the four biomolecules?
A substance that is dissolved in a solution
What is a solute?
atomic number = 6; mass number = 12.011
carbon
What is the base unit for volume in the metric system?
when more H+ than -OH are present in the solution
What is an acidic pH?
Molecules that have the same molecular formula
A substance that acts as a dissolving agent
What is a solvent?
Atoms in this column are considered noble gases
What are atoms in group 8 called?
The meniscus, read from the bottom of the curve
How do you measure a graduated cylinder?
when water pulls apart molecules from other molecules, and encircles them, while the covalent bonds within each molecule remain intact.
When does dissolving happen?
Plants use this biomolecule to store energy by linking together glucose into long chains.
How to plants use starch?
A measure of H+ concentration in a solution and is defined as pH = - log [H+]
What is pH?
Protons: positive charge, number of protons determine the element; neutrons: no charge, determines the isotope; electrons: negative charge, determine chemical behavior
What are the three subatomic particles and what properties of the atom do they each determine?
1,000,000 micrograms in one
How many micrograms in 1 gram?
when water pulls apart the ions in an ionic bond.
When does disassociating happen?
The phospholipid bilayer
What creates the cell membrane that all organisms posess?
This is used to to express the concentration of the solute in the solution.
What is molarity used for?
You would call this nitrogen a cation
What do you call a nitrogen that gains a proton?
The advantage is that it is based on 10's
What is the advantage of the metric system?
high heat capacity, solvent properties, adhesion, density and freezing properties
what are the main emergent properties of water that support life on earth?
These are made up of nitrogen containing bases, phosphate groups, and sugar molecules
What are nucleic acids made up of?
A method used to determine the relative pH of a solution
Hydrogen atom
What atom is the most electronegative?
The graduated cylinder
What device provides the most accurate measurement?
These will not dissolve or dissociate
Completely non polar molecules will not do what?