Midterm 1 Flashcards
What is biochemistry?
The study of living things at the molecular level
Why are cells the fundamental unit of life?
Carry genetic information in the form of DNA respond to stimuli and reproduce through cell division
What are the biopolymers?
Proteins, nucleic, acids, lipids, carbohydrates
Why are chemical bonds important
The macromolecules responsible for cellular structure and function are mad up of many thousands of adoms, held together by covalent bonds
What is a covalent bond
Strong Bond that holds molecules together
What is a noncovalent bond
Weaker bonds between ions and parts of molecules
Carbon carbon bonds and carbon hydrogen
They are strong
Sharing of eletrons
Intermolecular interaction
Between molecules
Intramolecular interactions
Within molecules
Electrostatic interactions
Between oppositely charged species
Why are noncovalent bonds important
Because they can be broken and reformed
Whats a strong acid/base
Completely dissociates
What is a weak acid / base
Dissociates only partly into protons + acceptors
Charge- charge
1/r
Charge - dipole
1/r^2
Dipole- dipole
1/r^3
Charge - induced diapole
1/r^4
Dipole induced diapole
1/r^5
What is ionization
Procces by which a adom or molecule gains a negative or positive charge by gaining or loosing electrons
What is ph
The acidity of a solution
Why study ph
Critical for life balance
Acids and bases do what in water
Ionize
What are acids
Proton donating molecules
What are bases
Proton acceptors
