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For the next few questions, select from a) Proteolytic b) Allosteric c) Competit

ID: 191400 • Letter: F

Question

For the next few questions, select from a) Proteolytic b) Allosteric c) Competitive d) Cofactor 48) These inhibitors bind directly to a protein's binding or active site. 49)--modulation involves physical removal of a specific amino acid sequence by an enzyme to activate or inhibit a protein. 50) Vitamins A, B, D, and K, as well as minerals (e.g magnesium, calcium, etc.), all play an essential role in this kind of protein modulation. 51) What kind of modulation is shown in the diagram below? For the next few questions, choose from a) ATP-CP system b) Electron transport system c) Glycolysis d) Citric Acid Cycle 52) This pathway utilizes cytochromes that function as 53) This pathway must hydrolyze 2 ATPs to get started, 54) This pathway occurs completely in the matrix of the H pumps. before ultimately synthesizing 4 ATPs. mitochondria. 55) This pathway is anaerobic and reduces NAD 56) This pathway consists of a single, coupled reaction. 57) Oxygen is required as an electron and H' acceptor at 58) Under anaerobic conditions, the 3-carbon end 59) Phosphofructokinase is the rate-limiting enzyme in 60) When one glucose molecule is COMPLETELY broken the last step in this pathway product of-_ is converted into lactic acid. this pathway down under aerobic conditions, this pathway produces of the largest number of ATP molecules 61) Beta oxidation provides substrate molecules for this 8) A metabolic pathway. 62) NADH and FADHz are oxidized in this pathway. 63) The CO2 that we breathe out is created in this Page 1 of 6 pathway

Explanation / Answer

48) Competitive - Competitive inhibitors block the binding site (active site) of the substrate and prevent the binding of the target molecule of the enzyme. Competitive inhibition can be overcome by adding more substrate to the reaction.

49) Proteolytic - modulation involves the physical removal of a specific amino acid sequence by an enzyme to activate or inhibit a protein.

50) Cofactor - Cofactor is a chemical compound that is not a protein which is required for the normal function of an enzyme. Vitamins and minerals act as cofactors to an enzymes.

51) Allosteric - Negative allosteric modulation is shown in the image. It occurs when the binding of a ligand decreases the affinity for substrate at the active site.