Please fill in the information below. NAME EMAIL PHONE NUMBER 1. Which of the following is the CORRECT function of enzyme, Peptidase?Removal of H2OCleave phosphodiester bondCleave amino bondsRemove phosphate from a substrate2. Energy is _______________ by the products in endergonic chemical reactions.absorbeddistributedreversedtransferred3. Excess final products in a series of chemical reaction causes _________ inhibition.(leave answer in lowercase)4. Which of the following enzyme is responsible for the regulation of biological nitrogen fixation?PhosphataseDinitrogenase oxidaseKinaseDinitrogenase reductase5. Which one is not an enzyme used for MI diagnosis?Troponin TLDHASTALT6. What is the nature of an enzyme?LipidCarbohydrateProteinVitamin7. Which of the following function is catalyzed by Racemases?Intramolecular transfer of a functional groupInterconversion of L and D stereoisomersInversion of asymmetric carbon atomRemoval of water8. Which is the enzyme that acts as a regulatory enzyme in a four-step metabolic pathway?First enzymeFourth enzymeSecond enzymeThird enzyme9. The allosteric inhibitor of an enzyme ______Denatures the enzymeCauses the enzyme to work fasterBinds to the active siteParticipates in feedback regulation10. The attachment of phosphoryl groups to specific amino acid residues is catalyzed by ______Diphteria toxin and cholera toxinProtein kinasesDinitrogenase reductaseProtein phosphatases11. What is the binding energy?The energy required to form a bondThe energy required to bind substrateIt is the activation energyFree energy released in the formation of enzyme-substrate interaction12. Which of the following is NOT an enzyme?CatalaseSucrosePepsinAmylase13. Which of the following is NOT true about enzymes?Enzymes are proteinsEnzymes lower the activation energyEnzymes catalyzes chemical reactionsEnzymes react with the substrate in a chemical reaction.14. The following is the right optimal pH for most enzymes and stomach enzymes except?PH 6 - 8 for most enzymes.All of the abovePH of 2 for stomach enzymesPH 5 - 9 for most enzymes.15. Which of the following reaction is catalyzed by Lyase?Formation of bondsTransfer of group from one molecule to anotherBreaking of bondsIntramolecular rearrangement of bonds16. Out of the four things listed what will most likely not affect an enzymeSaltTemperatureH20PH17. What is the function of phosphorylase?Transfer a carboxylate groupUse H2O2 as the electron acceptorTransfer inorganic phosphateTransfer amino group18. A __________is a biocatalyst that increases the rate of the reaction without being changed.Silicon dioxideHydrogen peroxideEnzymeAluminum oxide19. Forming and breaking bonds requires ________ depending upon what kind of a reaction you have.fusionproteinfuelenergy20. Which of the following is false about allosteric feedback inhibition?Threonine dehydratase is inhibited by isoleucineConversion of L-leucine to L-isoleucineIf the isoleucine concentration decreases, the rate of threonine dehydration increasesBacterial enzyme system is the first known example21. Which of the following enzyme is responsible for the regulation of biological nitrogen fixation?PhosphataseDinitrogenase reductaseKinaseDinitrogenase oxidase22. Enzymes end in - aseFalseTrue23. Cellulose is a tough component of plant fiber. Animals such as cows, horses and goats are able to digest cellulose because of their enzyme called ___________(leave answer in lowercase)24. Which line in the graph shows the presence of an enzyme in a chemical reaction? Line 1Line 225. Enzymes are reaction specific ( each reaction has a specific enzyme that catalyzes it)TrueFalse26 out of 25Time is Up!
