BIOMOLECULES- Please answer the questions properly.- Multiple choice1. Supposed you want to use phosphoglucomutase tobreakdown glycogen. You found out that this enzymeis responsible for converting glucose l-phosphate(C6H1309P) to glucose-6-phosphate (C6H1309P).Based on this action, to which enzyme class doesphosphoglucomutase belong?A. LigaseB. IsomeraseC. OxidoreductaseD. Lyase2. Enzymes can be regulated in a many different ways.Covalent modification is one way. Here, the functionalgroups are attached to or removed from the enzyme. Aphosphate group is an example of a functional groupthat can be added to an enzyme. Depending on theenzyme, addition of a phosphate group can eitherincrease or decrease an enzyme's activity. Evaluate thefollowing names and identify the general name of anenzyme that functions to add phosphate groups to itssubstrate?A. ligaseB. isomeraseC. phosphataseD. kinase

Protein-based biomolecules belonging to the class of enzymes speed up chemical reactions.. Enzymes…

Answered: 1. Supposed you want to use…

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

See similar textbooks

Similar questions

1.a. Given what you know about glycolysis and gluconeogenesis, does it make sense that insulin activates PDH phosphatase? Why? b.How do vitamins increase to the breadth of chemical reactions available within a biological system?
III. Match the item to each step in the Krebs Cycle. a. isocitrate f. oxaloacetate g. sulfur h. a-ketoglutarate i. fumarate j. ATP b. succinate C NAD d. malate e. succinyl-CoA 85. What molecule is formed when GTP is oxidized to form GDP? 86. What molecule is formed when FAD is reduced? 87. Which molecule must be reduced so that oxaloacetate is formed? IV. Match each compound to a step that of the Light-Dependent Reaction. a. P700 b. P680 . P680 d. ATP synthase e. PhotosystemI f. electron acceptor g. electron carrier h. chlorophyll II. i. NADPH reductase j. b. - f complex 88. Light photons excite electrons from this part of the Reaction Centre. 89. The enzyme that helps remove electrons from the thylakoid. 90. The enzyme that acts to form ATP with chemiosmosis. V. Match the enzyme or protein to the replication process. a. DNA polymerase l b. DNA polymerase I| . DNA polymerase III d. primase e. DNA ligase f. helicase g. single-strand-binding proteins h. topoisomerase Il 91. Unwinds helix…
1. Which of the following TCA cycle intermediates is also a metabolite in gluconeogenesis? a. Oxaloacetate b. Pyruvate c. Citrate d. Succinate e. Succinyl CoA
3. Answer the following questions about the metabolic pathway shown below: glutamate dehydrogenase e NH3 0-C-C-cH2-CH2-C- 0-C-CH-CH2-CH2-C-O + H,O + NAD + NH + NADH + H (a) Label the correct substances as the substrate, enzyme, and co-enzyme. (b) Which of the six classes does the enzyme of this reaction belong to? Why? (c) What is the name of the first molecule in this reaction? (d) Which metabolic pathway is this reaction likely to be a part of? A. glycolysis B. deamination C. beta-oxidation D. fermentation
11. Refer to the figure below. нн Н `NH2 NH2 N' N- 2e-+H* R NAD+ NADH NAD+ functions as a coenzyme in many enzyme-catalyzed reactions. The changes that take place in this coenzyme are the same for all of these reactions and are illustrated in the figure. It is likely that, in these reactions, NAD+ functions as an electron acceptor (reducing agent) in redox reactions. functions as an electron donor (oxidizing agent) in redox reactions. functions as a base in acid-base catalytic mechanisms. functions as an electron donor (oxidizing agent) in redox reactions. functions as an electron acceptor (oxidizing agent) in redox reactions. +Z-
7. Which of the following statements about gluconeogenesis is CORRECT? Select one: a. Glucose-6-phosphatase hydrolyzes glucose 6-phosphate to release glucose into the blood. b. Glucose-6-phosphatase hydrolyzes glucose 6-phosphate and is found in liver and muscle. c. Fructose-1,6-biphosphatase converts fructose-1,6-bisphosphate into fructose-1-phosphate. d. Pyruvate is first converted to phosphoenolpyruvate by phosphoenolpyruvate carboxykinase.
4) Phosphofructokinase (PFK) is a highly regulated enzyme in glycolysis. ADP (and also AMP - adenosine monophosphate) bind to allosteric sites on PFK's structure, causing additional active sites (fructose-6-phosphate binding sites) to open. Conversely, ATP and PEP (phosphoenolpyruvate) bind to different allosteric sites, resulting in PFK's active sites closing. a) How does an allosteric activator work? What is the allosteric activator? When would it be important for PFK to be activated? Function: Allosteric Activator(s): Importance: b) How does an allosteric inhibitor work? What is the allosteric inhibitor? When would it be important for PFK to be inhibited? Function: Allosteric Inhibitor(s): Importance: c) How does this relate to the ideas of homeostasis and why does it make sense to control this system homeostatically? Use a specific example to make your comparison.
1. Diagram the connection of the following pathways: glycolysis, gluconeogenesis, pentose phosphate pathway, glycogen synthesis, glycogen synthesis, glycogen degradation. Use key intermediate names, pathway names and arrows in your diagram.
Which of the following about glycolysis are CORRECT? 1 I. II. III. IV. Among all the reactions in glycolysis, reaction catalysed by hexokinase has the largest negative AG The overall pathway of glycolysis has a negative AG Glycolysis is tightly regulated in coordination with other energy-yielding pathways Two NADP molecules are released and coupled exergonic reactions possible. A. I and II B. I and III O C. II and IV D. I, II and III E. All of them

Recommended textbooks for you

Biochemistry

ISBN:

9781319114671

Author:

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

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781319114671

Author:

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

Publisher:

W. H. Freeman

Lehninger Principles of Biochemistry

Biochemistry

ISBN:

9781464126116

Author:

David L. Nelson, Michael M. Cox

Publisher:

W. H. Freeman

Fundamentals of Biochemistry: Life at the Molecul…

Biochemistry

ISBN:

9781118918401

Author:

Donald Voet, Judith G. Voet, Charlotte W. Pratt

Publisher:

WILEY

Biochemistry

ISBN:

9781305961135

Author:

Mary K. Campbell, Shawn O. Farrell, Owen M. McDougal

Publisher:

Cengage Learning

Biochemistry

ISBN:

9781305577206

Author:

Reginald H. Garrett, Charles M. Grisham

Publisher:

Cengage Learning

Fundamentals of General, Organic, and Biological …

Biochemistry

ISBN:

9780134015187

Author:

John E. McMurry, David S. Ballantine, Carl A. Hoeger, Virginia E. Peterson

Publisher:

PEARSON

SEE MORE TEXTBOOKS