Atoms
A subatomic particle that has no charge
Neutron
Cohesive - attraction of molecules of _____ substance(s)
Same
Building block of polymers
Monomer
Passive or active transport - does not require energy
Passive transport
Are lipids hydrophilic or hydrophobic?
Hydrophobic
Subatomic particle that has a negative charge
Electron
In a solution of salt water, salt would be considered the solute and water would be considered the _____
Solvent
Name 2 of the 4 macromolecules we talked about in Unit 2
Proteins, Carbohydrates, Lipids, Nucleic Acids
Diffusion is the movement of solutes from _____ concentration to _____ concentration
High; low
These are typically solid at room temperature
Saturated fatty acids
Center of the atom
Nucleus
The bond that holds together a single H2O molecule
Covalent bond
What 3 elements make up carbohydrates and lipids?
Carbon, Hydrogen, Oxygen
Is diffusion active or passive transport?
Passive
What are the monomers of nucleic acids?
Nucleotides
Charged atom
Ion
The bond that holds together two separate H2O molecules
Hydrogen bond
What are the monomers of proteins?
Amino acids
Osmosis is the movement of water from ___________ to ___________
High water; low water
Name the four levels of protein structure
Primary, Secondary, Tertiary, Quaternary
Atoms are neutrally charged. Why?
Same amount of protons and electrons
Water is polar. What does that mean?
Charged on both sides of the molecule
What are the monomers of carbohydrates?
Monosaccharides
What kind of lipids make up the plasma membrane?
Phospholipids
What do enzymes do?
Speed up chemical reactions