Question 1

In proteases such as papain,a ___________________ residue is activated by hydrogen-bonding to a histidine residue.

Accepted Answer

The answer of In proteases such as papain,a ___________________ residue...

Question 2

Convergent evolution is attributed to similarities found between

Accepted Answer

A)  trypsin and elastase. 
B)  chymotrypsin and elastase. 
C)  chymotrypsin and subtilisin. 
D)  chymotrypsin and trypsin. 
E)  trypsin and kinase. 
A)  trypsin and elastase. 
B)  chymotrypsin and elastase. 
C)  chymotrypsin and subtilisin. 
D)  chymotrypsin and trypsin. 
E)  trypsin and kinase.

Question 3

What modification is made to DNA that protects the host DNA from cleavage by host restriction endonucleases?

Accepted Answer

A)  acetylation 
B)  methylation 
C)  phosphorylation 
D)  ubiquitination 
E)  adenylation 
A)  acetylation 
B)  methylation 
C)  phosphorylation 
D)  ubiquitination 
E)  adenylation

Question 4

What is significant about the slow rate for myosin's hydrolysis of ATP?

Accepted Answer

The persistence of a conformat

Question 5

Effective protease inhibitors are often _________________ for one enzyme.

Accepted Answer

The answer of Effective protease inhibitors are often _________________ for...

Question 6

EcoRV cleaves cognate DNA with a specificity approximately _____ times that of non-cognate DNA.

Accepted Answer

A)  10 
B)  1000 
C)  10,000 
D)  1,000,000 
E)  100,000,000,000 
A)  10 
B)  1000 
C)  10,000 
D)  1,000,000 
E)  100,000,000,000

Question 7

What structures found in proteins are named for the fact that they interact with phosphoryl groups?

Accepted Answer

A)  P-sheet 
B)  P-site 
C)  P-loop 
D)  P-helix 
E)  P-turn 
A)  P-sheet 
B)  P-site 
C)  P-loop 
D)  P-helix 
E)  P-turn

Question 8

What is the common nucleophile found in cysteine,metallo-,and aspartyl proteases?

Accepted Answer

The common

Question 9

What features of carbonic anhydrase allow the rapid hydration of carbon dioxide?

Accepted Answer

Bringing the two reactants (ca

Question 10

The metal ion most commonly found at the active site of metalloproteases is

Accepted Answer

A)  zinc. 
B)  calcium. 
C)  selenium. 
D)  magnesium. 
E)  sodium. 
A)  zinc. 
B)  calcium. 
C)  selenium. 
D)  magnesium. 
E)  sodium.

Exam 9: Catalytic Strategies

In proteases such as papain,a ___________________ residue is activated by hydrogen-bonding to a histidine residue.

Convergent evolution is attributed to similarities found between

What modification is made to DNA that protects the host DNA from cleavage by host restriction endonucleases?

What is significant about the slow rate for myosin's hydrolysis of ATP?

Effective protease inhibitors are often _________________ for one enzyme.

EcoRV cleaves cognate DNA with a specificity approximately _____ times that of non-cognate DNA.

What structures found in proteins are named for the fact that they interact with phosphoryl groups?

What is the common nucleophile found in cysteine,metallo-,and aspartyl proteases?

What features of carbonic anhydrase allow the rapid hydration of carbon dioxide?

The metal ion most commonly found at the active site of metalloproteases is

Biochemistry: An Evolving Science

Protein Composition and Structure

Exploring Proteins and Proteomes

DNA, RNA, and the Flow of Genetic Information

Exploring Genes and Genomes

Exploring Evolution and Bioinformatics

Hemoglobin: a Portrait of a Protein in Action

Enzymes: Basic Concepts and Kinetics

Regulatory Strategies

Carbohydrates

Lipids and Cell Membranes

Membrane Channels and Pumps

Signal-Transduction Pathways

Metabolism: Basic Concepts and Design

Glycolysis and Gluconeogenesis

The Citric Acid Cycle

Oxidative Phosphorylation

The Light Reactions of Photosynthesis

The Calvin Cycle and the Pentose Phosphate Pathway

Glycogen Metabolism

Fatty Acid Metabolism

Protein Turnover and Amino Acid Catabolism

The Biosynthesis of Amino Acids

Nucleotide Biosynthesis

Biosynthesis of Membrane Lipids and Steroids

The Integration of Metabolism

DNA Replication, repair, and Recombination

RNA Synthesis and Processing

Protein Synthesis

The Control of Gene Expression in Prokaryotes

The Control of Gene Expression in Eukaryotes

Sensory Systems

The Immune System

Molecular Motors

Drug Development

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