BIOLOGY MODULE 3 TEST BANK QUESTIONS AND ANSWERS

BIOLOGY MODULE 3 TEST BANK QUESTIONS AND ANSWERS Monomer of proteins - ans amino acids Proteins range of functions - ans -structural -regulatory -protective -transport -storage -toxins -enzymes -hormones Parts of amino acid - ans central carbon atom bonded to: -amino group (-nh2) -carboxyl group (-cooh) -hydrogen atom -r group R group of amino acids - ans -is a variable atom/group of atoms -the only difference between 20 amino acids Amino acids are joined by - ans peptide bonds Peptide bond - ans covalent bond between the carboxyl group of 1 amino acid and the amino group of the 2nd amino acid Primary structure of protein - ans unique sequence and number of amino acids in a chain Secondary structure of protein - ans folding patterns resulting from interactions between the non-r group portions of amino acids Tertiary structure of protien - ans 3 dimensional structure of polypeptide caused primarily by interactions between r groups Quaternary structure of protein - ans interaction between multiple polypeptides to form a completed protein Chemical nature of ______________ determines the chemical nature and tertiary structure of the amino acid - ans r group Denaturation - ans changes in protein structure that leads to change in function What causes denaturation? - ans ph, temperature, chemicals Thermodynamics - ans the study of energy and energy transfer involving physical matter Energy -