AP BIO CHAPTER 1 VOCAB Flashcards
(17 cards)
Dehydration Synthesis
Dehydration synthesis reactions build molecules up and generally require energy.
Hydrolysis
Hydrolysis reactions break molecules down and generally release energy. Like breaking down water molecules.
Hydrogen Bond
An electrostatic attraction between a hydrogen atom in one polar molecule (as of water) and a small electronegative atom (as of oxygen, nitrogen, or fluorine)
Polar Molecule
A polar molecule is a molecule in which one end of the molecule is slightly positive, while the other end is slightly negative there is an unequal sharing of electrons
Cohesion
Attraction of water molecules to each other (other water)
Adhesion
Attraction of water to another substance
Surface Tension
The tension of the surface film of a liquid is caused by the attraction of the particles in the surface layer by the bulk of the liquid, which tends to minimize surface area.
(Related to cohesion, the water molecules being held together like the penny drop experiment)
Molecules that have phosphorus
Lipids and Nucleic Acids
Elements in carbohydrates
Carbon Oxygen Hydrogen
Molecules with nitrogen
Protein (amino acids) nucleic acid
amino acid
Molecules that combine to form proteins and the broken down result of protein
Monomer
Amino Acids - a monomer of protein
Think mono - single (like us)
Polymer
Made of a group of Monomers (Protein) - Think poly many
Polysaccharide
Multiple sugar molecules (Long chain of carbs)
Monosaccharide
Single sugar molecule
Capillary Action
Water moving through cohesion and adhesion, is how water is able to move its way upwards from the roots to the leafs.
Evaporative Cooling
High energy water molecules evaporate first leaving the cooler molecules behind
(Evaporation cools things off)
