Biochemistry
Biochemistry
8th Edition
ISBN: 9781464126109
Author: Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr., Lubert Stryer
Publisher: W. H. Freeman
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Chapter 21, Problem 2P
Interpretation Introduction

(a)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Glycogen phosphorylase is one of the phosphorylase enzymes.

Interpretation Introduction

(b)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Phosphorolysis is analogous to hydrolysis.

Interpretation Introduction

(c)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Transferases are enzymes that catalyzes the transfer of certain functional groups form one molecule to another.

Interpretation Introduction

(d)

Interpretation:

Each item should be matched with its description.

Concept introduction:

a-1,6-glucosidase is a glycogen debranching enzyme which involves in glycogen catabolism.

Interpretation Introduction

(e)

Interpretation:

Each item should be matched with its description.

Concept introduction:

The free glucose molecule released from the cleavage of glucosyl residue from glycogen after glycogen phosphorylase activity, has a phosphate group on C-1. This glucose-1-phosphate is not a useful metabolite. So it should be converted to glucose-6-phosphate.

Interpretation Introduction

(f)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Phosphorylase kinase is a serine/threonine specific protein kinase.

Interpretation Introduction

(g)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Protein kinase A perform several functions like regulation of glycogen, sugar and lipid metabolism. This enzyme activity depends on cyclic-AMP.

Interpretation Introduction

(h)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Calmodulin is a calcium binding protein which is found in all eukaryotic cells. Ca2+ is required for the activation of calmodulin.

Interpretation Introduction

(i)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Epinephrine is a hormone and also known as adrenaline. It is secreted by adrenal glands and used as a medication for various illnesses.

Interpretation Introduction

(j)

Interpretation:

Each item should be matched with its description.

Concept introduction:

Glucagon is secreted in alpha cells in pancreas. It is a peptide hormone. It is considered as the major catabolic hormone in human body.

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