Exam 1,2,3 2014

exam-1-2014

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Question 1 of 1

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21505

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The role of ATP in activity of the Na+/K+ ATPase is:

Select the correct answer(s).

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21506

120

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You are culturing bacteria in a colder environment (e.g. 23° C) and a warmer (e.g. 37° C) environment. You would anticipate that bacteria grown in the colder environment will display what difference in the composition of their membranes?

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21507

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Which amino acid sequence would most likely be found in the α-helical transmembrane domain of a plasma membrane protein?

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21508

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The carbohydrate moiety of a glycoprotein is generally linked to the protein through which groups?

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21474

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If the pI of a protein is greater than the pH of the solution in which the protein is suspended, the protein will:

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21476

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Which of the following amino acids will have a net positive charge at a pH = 7.0?

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21477

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ΔG° of any reaction is another way of expressing:

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21478

120

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You have two solutions, one with a pH of 6.4 and another with a pH of 7.0. The proton concentration ([H+]) of the more acidic solution is:

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21479

120

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The capacity of a buffer depends upon:

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21480

120

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A reason for the popularity for inclusion of histidine “tags” (his-tags) in cloning and expression for recombinant proteins is:

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21481

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The amino acid composition includes A, K, F, M, C, and W. Treatment with carboxypeptiase results in release of W and a pentapeptide. CNBr treatment yields a tetrapeptide and a dipeptide Trypsin digestion produces a single amino acid and a peptide with M on the amino end. Chymotrypsin digestion yields a dipeptide and a tetrapeptide.Determine the A.A. sequence

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21483

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An amino acid’s amino group + an aldehyde >>water + ?

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21484

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Because peptide bond formation is thermodynamically , biological systems must couple peptide bond formation to a thermodynamically reaction.

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21485

120

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Resonance in peptide bonds results in all EXCEPT:

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21486

120

none

The large differences between the chemical potential (ΔG) for ATP hydrolysis under physiological conditions and the ΔG°’ for this reaction are predominantly due to the effects of __ rather than effects of _ and _____.

Exam 1,2,3 2014

Question 1 of 1

Time Left

The role of ATP in activity of the Na+/K+ ATPase is:

Select the correct answer(s).

(0/0)

You are culturing bacteria in a colder environment (e.g. 23° C) and a warmer (e.g. 37° C) environment. You would anticipate that bacteria grown in the colder environment will display what difference in the composition of their membranes?

Select the correct answer(s).

(0/0)

Which amino acid sequence would most likely be found in the α-helical transmembrane domain of a plasma membrane protein?

Select the correct answer(s).

(0/0)

The carbohydrate moiety of a glycoprotein is generally linked to the protein through which groups?

Select the correct answer(s).

(0/0)

If the pI of a protein is greater than the pH of the solution in which the protein is suspended, the protein will:

Select the correct answer(s).

(0/0)

Which of the following amino acids will have a net positive charge at a pH = 7.0?

Select the correct answer(s).

(0/0)

ΔG° of any reaction is another way of expressing:

Select the correct answer(s).

(0/0)

You have two solutions, one with a pH of 6.4 and another with a pH of 7.0. The proton concentration ([H+]) of the more acidic solution is:

Select the correct answer(s).

(0/0)

The capacity of a buffer depends upon:

Select the correct answer(s).

(0/0)

A reason for the popularity for inclusion of histidine “tags” (his-tags) in cloning and expression for recombinant proteins is:

Select the correct answer(s).

(0/0)

Select the correct answer(s).

(0/0)

An amino acid’s amino group + an aldehyde >>water + ?

Select the correct answer(s).

(0/0)

Because peptide bond formation is thermodynamically __________, biological systems must couple peptide bond formation to a thermodynamically __________ reaction.

Select the correct answer(s).

(0/0)

Resonance in peptide bonds results in all EXCEPT:

Select the correct answer(s).

(0/0)

The large differences between the chemical potential (ΔG) for ATP hydrolysis under physiological conditions and the ΔG°’ for this reaction are predominantly due to the effects of ____ rather than effects of _____ and _______.

Select the correct answer(s).

(0/0)

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Because peptide bond formation is thermodynamically , biological systems must couple peptide bond formation to a thermodynamically reaction.

The large differences between the chemical potential (ΔG) for ATP hydrolysis under physiological conditions and the ΔG°’ for this reaction are predominantly due to the effects of __ rather than effects of _ and _____.