AP Bio Notes Flashcards
(23 cards)
Term used to describe the bond type in which atoms share electrons
Covalent Bonds
Hydrogen bonds are weak because..
they contain **partially negative O atoms (S-) **
and partially positive H atoms (S+)
Polarity in water does what?
Polarity in water allows molecules to attract to one another
Hydrogen bonds can result in..
Surface Tension, Cohesion, Adhesion
Capillary action is result of..
Adhesive and Cohesive properties of water
Water molecules stick to other polar molecules by hydrogen bonding
Adhesion
Water molecules stick to other water molecules by hydrogen bonding
Cohesion
Water contains
1 oxygen atom covalently bonded to 2 hydrogen atoms
H/O has Higher polarity
Oxygen, results in water polarity
What allows molecules to form hydrogen bonds when oppositely charged regions of two molecules interact
Polarity
Molecules of the same type forming hydrogen bonds with one another
Cohesion
Different types of molecules forming hydrogen bonds with one another
Adhesion
Living systems require constant input of energy
Law of Conservation of Energy
4 Class of Macromolecules found in Living Cells
Carbohydrates, Lipids, Proteins, Nucleic Acids
Elements of Carbohydrates
C, H, O (Carbon, Hydrogen, Oxygen)
Elements of Lipids
C, H, O (Carbon, Hydrogen, Oxygen)
Elements of Proteins
C, H, O, N (Carbon, Hydrogen, Oxygen, Nitrogen)
Elements of Nucleic Acids
C, H, O, N, P (Carbon, Hydrogen, Oxygen, Nitrogen, Phosphate)
Carbon is used to build
Macromolecules
Monomers are used to create
Polymers (Nucleotides -> Nucleic Acids)
What bond forms between 2 monomers
Covalent bond
makes a polymer, used to create macromolecules
Dehydration Synthesis
breaking a polymer
Hydrolysis
