BIOMOLECULES- Please answer the questions properly.- Multiple choice1. Enzymes have known attributes and functions.Which of the following is NOT its common attribute orfunction?A. enzymes are specificB. enzymes may be used many times for a specificreactionC. enzymes provide activation energy for reactionsD. enzyme activity can be regulated2. Evaluate the following statements and identify thebest that can describe how a lysozyme works.?A. It cuts the bond in a polysaccharide, by holding sixsugarsin a row in its active site, and adding a watermolecule, causing hydrolysis.B. It is responsible for the cleaving of amino acidchains via the ping-pong mechanism.C. It cleaves the phosphodiester bond in nucleic acids,via hydrolysis.D. It hydrolyzes bonds in lipids, causing a split in afatty acid chain.

Enzymes are proteinaceous in nature, these are biological substances that are responsible for…

Answered: 1. Enzymes have known attributes and…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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All of the following are ways of controlling enzyme mechanism, except A. Edman degradation B. zymogens C. phosphorylation D. allosteric
7
What are the concepts of specificity, competition, and saturation as they relate to enzymes. Include how enzymes show each property.
1. A student was given two test tubes. One tube contains a reaction catalyzed by an inorganic catalyst, while the second tube contains a reaction catalyzed by an enzyme which is protein in nature. Give two laboratory procedures which you can perform to differentiate which of the two tubes contain an enzyme-catalyzed reaction.
1.A student was given two test tubes. One tube contains a reaction catalyzed by an inorganic catalyst, while the second tube contains a reaction catalyzed by an enzyme which is protein in nature. Give two laboratory procedures which you can perform to differentiate which of the two tubes contain an enzyme-catalyzed reaction. 2. List the enzymes whose levels are elevated in blood serum as a result of hepatitis or cirrhosis of the liver.
INSTRUCTIONS - Answer the following multiple-choice questions and EXPLAIN in 3-5 sentences why you chose that answer. Answer properly -
Proteases are one of the main drug targets. Choose the False statement regarding proteases. A. Proteases are enzymes that cleave peptide bonds. B. Water is a reactant in the reaction catalyzed by proteases. C. Proteases, like all enzymes show substrate specificity, meaning they cleave only substate that fit the bonding product. D. Proteases rely on the proton transfer from NADH to the substrate. E. Protease mechanism involves only acid-base catalysis.
1. define in your own words enzyme 2. explain how enzymes act on a substrate 3. explain the term catalyst 4. what is meant by optimal conditions for enzymes and what are the conditions 5. explain what catalase is: what it helps to break down and into what parts.
Which of the following is incorrect about the enzyme chymotrypsin? a. It catalyzes the addition of water across a double bond O b. It is known as a serine protease O c. Artificial substrates are used to monitor the reaction catalyzed by the enzyme d. It is classified as a hydrolase
19. What is the optimal pH for catalase? Why do you think it becomes less effective at high or low pH? 20. Can you think of anywhere in the human body where enzymes would work BEST at a high pH? Please give an example and draw what that graph might look like. 21. What is the optimal temperature for catalase? Why do you think it becomes less effective at high or low temperatures? 22. Can you think of any organisms that would have enzymes specifically adapted to extreme low or high temperatures and would therefore function best at a different part of the graph? Please give an example and draw what that graph might look like.
COO COO C -NH2 CH2 CH2 1 3 CH2 CH2 CH2 4 CH2 H- -NH3 -NH3 H- C COO CO- А C a. Aminotransferase is the only enzyme that can catalyze the B -> C conversion b. Reaction 4 requires ATP c. All reactions (1-4) run only in the liver d. Compound A is a nitrogen donor for synthesis of 5- ribosylamine e. Reaction 1 is a hydrolysis and the enzyme catalyzing this reaction is active only in hepatocytes
In order for ATP to effectively deliver energy to an enzyme, the following needs to be the case: a. a. ATP hydrolysis is spatially close to the enzyme’s active site b. There must be a separate protein present whose task is ATP hydrolysis c. There must be a phosphate acceptor present d. ATP must be formed during the reaction

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