iupui physiology, exam 1 part 2 questions and answers 100% correct

iupui physiology, exam 1 part 2 questions and answers 100% correct proteins that act as biological catalysts - Answer- Enzymes hormones - Answer- signal molecules movement of substances into and out of the cell channels, transporters - Answer- membrane transport bind signal molecules - Answer- Receptors bind and transport other molecules to the body - Answer- binding antibodies - Answer- immunoglobulins a region in the protein where the ligand binds - Answer- binding site works with - Answer- agonist competitor works against - Answer- antagonist competitor slightly different versions of the same protein - Answer- isoforms the cutting of a polypeptide chain - Answer- Proteolysis enzyme helpers interface that allows ligand to bind - Answer- Cofactors a chemical - Answer- ligand competitive inhibitor ligan blocking functional ligand - Answer- competitive inhibition makes binding site not accessible - Answer- allosteric modulation up = making more copies of protein down = remove proteins - Answer- up and down regulation A change in the shape of a protein (such as an enzyme) that can be caused by changes in temperature or pH (among other things). - Answer- Denature storage for energy - Answer- Bonds energy of motion - Answer- kinectic energy stored energy - Answer- potential energy Energy cannot be created or destroyed - Answer- 1st law of thermodynamics entropy- some energy will get degraded - Answer- 2nd law of thermodynamics Energy needed to get a reaction started - Answer- activation energy release energy because the products have less energy than reactants - Answer- Exergonic traps activation energy in the product, more free energy than reactant - Answer- Endergonic A substance found in living organisms that speeds up reactions (an enzyme). - Answer- biological catalyst inactive substance that is converted into an enzyme when activated by another enzyme (proteins that end in ogen, is a zymoge