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Biochemistry
9th Edition
ISBN: 9781319114671
Author: Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher: W. H. Freeman
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
Transcribed Image Text:BIOMOLECULES
- Please answer the questions properly.
- Multiple choice
1. Enzymes have known attributes and functions.
Which of the following is NOT its common attribute or
function?
A. enzymes are specific
B. enzymes may be used many times for a specific
reaction
C. enzymes provide activation energy for reactions
D. enzyme activity can be regulated
2. Evaluate the following statements and identify the
best that can describe how a lysozyme works.?
A. It cuts the bond in a polysaccharide, by holding six
sugars
in a row in its active site, and adding a water
molecule, causing hydrolysis.
B. It is responsible for the cleaving of amino acid
chains 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 a
fatty acid chain.
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- ymes change their conformation after each reaction, therefore they can only be used once. OEnzymes can be proteins that can be denatured by changes in pH or temperature. D Question 37 A major difference between purine and pyrimidine biosynthesis is that pyrimidine: O are attached to the ribose sugar while being synthesized O are completely synthesized prior to attaching to the ribose sugar O are partially synthesized, the sugar is added, then synthesis is completed O do not have a sugar moiety Question 38 Which of the following is produced in largest numbers by the TCA cycle?arrow_forwardA) Myth: Enzymes are specific for one substrate. Fact: Like most enzymes, alliinase can act on multiple different substrates. Explain why most enzymes can act on more than one substrate compound. (Refer to the “Alliin-like Substrates" panel in your answer.)arrow_forwardProtein synthesis is which type of reaction? Group of answer choices A. ester synthesis is anabolism B. ester synthesis is catabolism C. amide synthesis is catabolism D. amide synthesis is anabolism Triglyceride synthesis is which type of reaction? Group of answer choices A. amide synthesis is anabolism B. amide synthesis is catabolism C. ester synthesis is catabolism D. ester synthesis is anabolismarrow_forward
- Researchers have identified an enzyme that can catalyze two different chemical reactions. Which of the following is most likely true based on this finding? A B C D The reactants involved in the two reactions are very similar in their charge and shape. The reactant in one reaction acts as an allosteric inhibitor while the reactant in the sec- ond acts as an allosteric activator. The enzyme contains both alpha-helices and beta-sheets in their secondary structures. The catalytic activity of the enzyme is dependent on both competitive inhibition and al- losteric regulation.arrow_forward19. 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.arrow_forward
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