Atoms
Negatively charged particle
Electron
In a solution of salt water, what is the solute and what is the solvent?
Salt; Water
Name the 4 macromolecules we talked about in Unit 2
Carbohydrates, Lipids, Proteins, & Nucleic acids
Which type of transport does not require energy?
Passive
What are the monomers of nucleic acids?
Nucleotides
Center of the atom
Nucleus
Bond that holds together two separate H2O molecules
Hydrogen bond
What 3 elements make up carbohydrates and lipids?
Carbon, Hydrogen, and Oxygen
Diffusion is the movement of solutes from _____ concentration to _____ concentration
High; low
This reaction forms macromolecules and makes water
Condensation
Charged atom
Ion
What is cohesion?
Attraction of molecules of the same substance
What are the monomers of proteins?
Amino acids
What kind of lipids make up the plasma membrane?
Phospholipids
Name the four levels of protein structure
Primary, secondary, tertiary, quaternary
Bond where electrons are transferred
Ionic bond
Bond that holds together a single H2O molecule
Covalent bond
These are typically liquid at room temperature
Unsaturated fats
What is endocytosis?
When a cell engulfs materials to bring into the cell
What is the bond that holds amino acids called?
Peptide bond
Atoms are neutrally charged. Why?
Same amount of electrons & protons
Water is polar. What does that mean?
Charged on both sides of the molecule
What do enzymes do?
Speed up chemical reactions
Which way do solutes move in active transport?
What is the bond that forms between glycerol and fatty acids called?
Ester bond