GOB Chemistry 2 Final Exam Prep Part 1 of 4 | Practice Questions & Video Solutions

GOB Chemistry 2 Final - Part 1 of 4

Problem 1
Problem 2
Problem 3
Problem 4
Problem 5
Problem 6
Problem 7
Problem 8
Problem 9
Problem 10
Problem 11
Problem 12
Problem 13
Problem 14
Problem 15
Problem 16
Problem 17
Problem 18
Problem 19
Problem 20
Problem 21
Problem 22
Problem 23
Problem 24
Problem 25
Problem 26

GOB Chemistry 2 Final - Part 1 of 4

Welcome to the GOB Chemistry 2 Final - Part 1 of 4 practice set!

SAMPLE

Please be aware that you practice a sample exam set, which means that it’s mimicking a real exam. In order to have more accurate experience:

Download the worksheet to save time writing
Start solving the practice problems
If you're stuck, watch the video solutions
See your summary to get more insights

GOB Chemistry 2 Final - Part 1 of 4

26 problems

1PRACTICE PROBLEM

What is the line structure and condensed formula for the following amine?

Molecular structure of a secondary amine with carbon, hydrogen, and nitrogen atoms.

Is it classified as tertiary, secondary, or primary? Why?

2PRACTICE PROBLEM

Provide the correct name of the following amine: (CH₃CH₂CH₂CH₂)₂NH

rank

3PRACTICE PROBLEM

Consider the ammonium salt shown below. Provide its name and identify if it is a salt of primary, secondary, or tertiary amine.

Chemical structure of N-butylpentylammonium chloride, an ammonium salt of a secondary amine.

4PRACTICE PROBLEM

Is the following amine soluble in water? Why or why not?

<IMAGE>

5PRACTICE PROBLEM

The zwitterion structure of leucine (pI = 6.0) is shown below. Draw the predominant structure of leucine at pH 2.0 and determine its net charge.

Zwitterion structure of leucine at pI 6.0, showing positive and negative charges.

6PRACTICE PROBLEM

What are the names and three-letter abbreviations of polar amino acids that contain an amide in their side chains?

7PRACTICE PROBLEM

Which amino acid is represented by the letter C? Draw its structure ignoring stereochemistry.

8PRACTICE PROBLEM

Which of the following statements about the polarity of the R groups, their respective acidity or basicity, and hydrophobicity or hydrophilicity are correct?

I) Amino acids with nonpolar, aliphatic R groups are generally hydrophobic and do not significantly affect the acidity or basicity of the amino acid.

II) Amino acids with polar, uncharged R groups are hydrophilic and can participate in hydrogen bonding, but they do not influence the overall charge of the amino acid.

III) Amino acids with acidic R groups are hydrophobic due to their negative charge, which repels water molecules.

IV) Amino acids with basic R groups are generally hydrophilic and positively charged, making them soluble in water.

V) Aromatic amino acids with hydrophobic rings are always neutral in terms of charge and do not participate in hydrogen bonding.

9PRACTICE PROBLEM

Provide the products of the condensation reaction shown below. (Assume that they bond in the order shown.)

Condensation reaction of two amino acids forming a peptide bond.

10PRACTICE PROBLEM

Consider the following protein chain:

Diagram illustrating the primary structure of a protein chain with amino acids and planar units.

How many amino acids make the atoms in a planar unit? Why are the units planar?

11PRACTICE PROBLEM

True or False: Globular proteins, unlike fibrous proteins, are water-insoluble and composed of compact, non-repeating structures.

12PRACTICE PROBLEM

If all serine is replaced with leucine in a protein, what would you expect from the protein's tertiary structure?

13PRACTICE PROBLEM

Which of the following shows a protein with a quaternary structure and the correct number of polypeptides that make up that protein?

14PRACTICE PROBLEM

Given the following amino acids (His, Tyr, Trp, and Thr) in a protein, which of these have R groups that could exhibit salt bridges? (Select all that apply.)

I. His

II. Tyr

III. Trp

IV. Thr

15PRACTICE PROBLEM

The hydrolysis of isomaltose results in the formation of two glucose molecules with isomaltase as the enzyme. Construct an energy diagram illustrating the hydrolysis reaction progression with and without the presence of isomaltase.

16PRACTICE PROBLEM

Consider the following reaction:

Chemical reaction diagram showing L-malate converting to oxaloacetate with NAD+ and NADH.

Identify the subclass of oxidoreductase enzyme that facilitates this reaction.

17PRACTICE PROBLEM

True or false: An enzyme has a tertiary structure that recognizes the substrate.

18PRACTICE PROBLEM

Why is it said that enzymatic reactions follow an 'induced fit' rather than 'lock and key' mechanism?

19PRACTICE PROBLEM

Amylase is an enzyme that catalyzes the hydrolysis of starch into sugars in the human mouth and pancreas. Its optimal activity is at a pH of 6.7 to 7.0. What would be the effect on the rate of an amylase-catalyzed reaction if the pH was adjusted to 4.5?

20PRACTICE PROBLEM

During a biochemical experiment, it was found that α-ketoglutarate acts as an inhibitor of isocitrate dehydrogenase.

Chemical structures of α-ketoglutarate and isocitrate, relevant to enzyme inhibition.

Would α-ketoglutarate act as a competitive or noncompetitive inhibitor?

21PRACTICE PROBLEM

Identify the type of enzyme regulation in the scenario below:

The conversion of phosphoenolpyruvate to pyruvate, catalyzed by pyruvate kinase, is inhibited by high concentrations of alanine. Note that in this reaction, alanine is neither a product nor a substrate.

22PRACTICE PROBLEM

What type of enzyme regulation is being described in the following scenario?

The accumulation of ATP, a product of cellular respiration, inhibits the first enzyme in the process that breaks down glucose.

23PRACTICE PROBLEM

Which of the statements below best describes how enzyme activity is regulated by genetic control?

24PRACTICE PROBLEM

Xylulose is a rare sugar that participates in cellular carbohydrate metabolism. Determine the classification of this monosaccharide as an aldopentose, ketopentose, aldohexose, or ketohexose.

<IMAGE>

25PRACTICE PROBLEM

Which of the following important monosaccharides is correctly paired with its natural source?

26PRACTICE PROBLEM

Give the appropriate Fischer projection for the wedge-dash structure shown below:

Fischer projection of a carbohydrate with hydroxyl and methyl groups.

Download the Mobile app

Privacy

Do not sell my personal information

Accessibility

Patent notice

Sitemap