Extras Flashcards
What are the 3 components of a nucleotide monomer?
PHOSPHATE GROUP, SUGAR, AND NITROGENOUS BASE.
Define chemical buffer.
MOLECULES THAT ARE READY TO EITHER ACCEPT OR DONATE A PROTON TO HELP MAINTAIN A STABLE pH (NEUTRIALIZE)
Define base.
ACCEPT PROTONS IN WATER. DECREASE THE CONCENTRATION OF HYDROGEN IONS. AKA PROTON ACCEPTOR. WILL HAVE A BIGGER NUMBER OF pH VALUE. (think base, big number)
Define acid.
DISSOCIATES IN WATER TO PRODUCE A HYDROGEN ION AND ANION. INCREASES CONCENTRATION OF HYDROGEN IONS. AKA PROTON DONORS. WILL HAVE LOWER NUMBER OF pH VALUE
Understand the relationship between hydrogen ions and Ph.
pH: MEASURE OF AMOUNTS OF HYDROGEN IONS. MORE HYDROGEN IONS, ACIDIC. LESS HYDROGEN IONS, BASIC.
How many different amino acids are there?
- REPRESENTED BY VARIABLE R
What are the classes of lipids?
PETS. PHOSPHOLIPIDS, EICOSANOIDS, TRIGLYCERIDES, STEROIDS
Know the different classes of biological macromolecules.
Carbohydrates, lipids, proteins, nucleic acid
Characteristics of lipids
FATTY ACID. STORE ENERGY, FORMS MEMBRANES, STEROIDS. HYDROPHOBIC, NONPOLAR, NOT POLYMERS.
Characteristics of carbohydrates
SUGAR. STORE ENERGY AND STRUCTURAL MATERIAL. EXAMPLES: MONOSACCHARIDES – GLUCOSE; DISACCHARIDES – LACTOSE; POLYSACCHARIDES – GLYCOGEN WHICH IS STORED IN LIVER TYPICALLY.
Nucleic acids:
NUCLEOTIDES. STORE GENETIC INFO. DECIDES WHAT PROTEINS ARE MADE BY CELLS. THE MONOMERS COMPRISE RNA & DNA.
PROTEINS:
AMINO ACIDS. ENZYMES, STRUCTURAL MATERIAL, PEPTIDES. FUNCTIONS: ENZYMATIC, DEFENSE, TRANSPORTATION, SUPPORT, MOVEMENT, REGULATION, AND STORAGE. THEY ARE POLYMERS