Ch.13 Reaction Mechanisms, Chemistry Life Test Bank Docx - Biosciences Chemistry 4e | Test Bank Crowe by Jonathan Crowe. DOCX document preview.
Chapter 13: Reaction mechanisms: the chemical changes that drive the chemistry of life
Test Bank
Type: matching question
Title: Chapter 13 - Question 01
1) Match the description of a reaction mechanism with its correct name.
Feedback: Read sections 13.2-13.5 to remind yourself about the different reaction mechanisms.
a. The addition of the components of a water molecule to effect splitting of a large molecule into two smaller molecules = Hydrolysis
b. The addition of the components of a water molecule across a double bond = Hydration
c. The combination of two reactants, with the simultaneous elimination of a small molecule = Condensation
d. The combination of all the components of two reactants = Addition
Type: multiple response question
Title: Chapter 13 - Question 02
2) Condensation is the combination of which two of the following types of reaction?
a. Addition
b. Substitution
c. Elimination
d. Hydrolysis
e. Polymerization
Type: multiple choice question
Title: Chapter 13 - Question 03
3) The following reaction mechanism is a type of which one of the following?
a. Substitution
b. Addition
c. Condensation
d. Elimination
Type: multiple choice question
Title: Chapter 13 - Question 04
4) Hydrolysis reverses which of the following types of reaction?
a. Hydration
b. Elimination
c. Substitution
d. Condensation
Type: multiple choice question
Title: Chapter 13 - Question 05
5) The hydrolysis of which bond in ATP yields energy to drive biochemical reactions in the cell?
a. A
b. B
c. C
d. D
Type: multiple response question
Title: Chapter 13 - Question 06
6) Which of the following statements about reaction mechanisms are true? Select all that apply.
The polymerization of amino acids to form polypeptides is an example of a condensation reaction, not an addition reaction, as explained in section 13.5.
And addition is not restricted only to occur across the C=C double bond. Addition can also occur across the C=O bond, for example, as shown in section 13.3.
a. The polymerization of amino acids to form polypeptides is an example of an addition reaction.
b. Esterification is an example of a condensation reaction.
c. Addition only occurs across the C=C double bond.
d. Hydration is an example of an addition reaction.
e. A carbon atom carrying a positive charge is called a carbocation.
Type: matching question
Title: Chapter 13 - Question 07
7) Match the correct labels to the positions A-F in this energy diagram:
Feedback: Look at Figure 13.3 to see an annotated version of this energy diagram.
a. Products = F
b. Energy = A
c. Transition state = C
d. Progress of reaction = E
e. Reactants = B
f. Intermediate = D
Type: multiple choice question
Title: Chapter 13 - Question 08
8) A two-step reaction has associated with it how many transition states?
a. None
b. One
c. Two
d. Three
e. Four
Type: matching question
Title: Chapter 13 - Question 09
9) Put the following species in order of relative energy, with 1 being the lowest-energy, and 4 being the highest.
Feedback: Generally (but not always) the products of a reaction are more stable (are of lower energy) than the reactants from which they are formed. The transition state is the point of highest energy during a reaction. Look at Figure 13.3 to see these species plotted on an energy diagram.
a. Intermediate = 2
b. Products = 4
c. Reactants = 3
d. Transition state = 1
Type: matching question
Title: Chapter 13 - Question 10
10) Match the following abbreviations with their correct descriptions.
Feedback: Don’t forget that the ‘1’ and ‘2’ designations do not refer to the number of steps in the reaction, but to the number of species participating in the so-called rate-limiting step: the step of the reaction that determines the overall rate of reaction. The E2 and SN2 reactions both proceed in just one step, with that step involving two species; the E1 and SN1 reactions both proceed in two steps, with one species involved in the key, rate-determining step.
Page reference: Sections 13.2 and 13.4
a. E1 = A two-step elimination reaction
b. E2 = A one-step elimination reaction
c. SN1 = A two-step nucleophilic substitution reaction
d. SN2 = A one-step nucleophilic substitution reaction
Type: multiple choice question
Title: Chapter 13 - Question 11
11) The reaction scheme shown here represents which one of the following reaction types?
a. E1
b. E2
c. SN1
d. SN2
e. Addition
Type: multiple choice question
Title: Chapter 13 - Question 12
12) The reaction scheme shown here represents which one of the following reaction types?
a. E1
b. Condensation
c. SN1
d. SN2
e. E2
Type: multiple choice question
Title: Chapter 13 - Question 13
13) The reaction scheme shown here represents which one of the following reaction types?
a. Condensation
b. Elimination
c. Hydrolysis
d. Hydration
e. Substitution
Type: multiple choice question
Title: Chapter 13 - Question 14
14) Which of the following is produced by the final step of glycolysis?
a. Acetyl CoA
b. Glucose
c. ATP
d. Pyruvate
e. Fructose
Type: multiple choice question
Title: Chapter 13 - Question 15
15) Which of the following schemes correctly depicts what is happening during nucleophilic attack on a carbonyl group?
a. 
b. 
c. 
d. 
Type: fill-in-blank
Title: Chapter 13 - Question 16
16) A(n) _________ can undergo nucleophilic attack on the carbonyl group of an aldehyde to form a hemiacetal.
Feedback: A(n) alcohol can undergo nucleophilic attack on the carbonyl group of an aldehyde to form a hemiacetal. This reaction results in the addition of the alcohol across the carbonyl double bond.
Page reference: section 13.3
a. alcohol