Cells! Flashcards
PH
Concentration of hydrogen ions
Acids
Solutes that add hydrogen ions
Proton donor
Base
Solutes that remove hydrogen ions
Buffers
Weak acids that help balance PH
Ex. Carbonic acid H2CO3
NaOH +HCl
NaCl + H2O
4 organic molecules found in humans
Carbohydrates, lipids, proteins, nucleic acids
Glycogen
Main way to store sugar in animals
Starch
Main way to store sugar in plants
Saturated fatty acids
Remain solid at room temp and have single covalent bond between carbon
Unsaturated fatty acids
Remain liquid, double covalent bonds between carbon
What is the function of fatty acids
Energy source, insulation, protection
Steroids
Cholesterol gives placidity to cell membrane and maintains shape
Phospholipid
All membranes are made of two layers
Hydrophilic heads
Hydrophobic tails
What is proteins most abundant source of energy
Nitrogen
All enzymes are
Proteins
All chemical reactions are regulated by what
Enzymes
Primary structure
Chain of acids
Secondary structure
Alpha forms spirals
beta forms pleats