BioChem 210 Final Exam - Portage Learning UPDATED ACTUAL
Exam Questions and CORRECT Answers | A+ Guaranteed |
Exam Study Guide
Question 1.
T/F: Hydrogen is called the superglue of the chemical world.
Correct Answer: false
Question 2.
T/F: The time it takes for a compound to flow through a metabolic pathway is called the
flux.
Correct Answer: true
Question 3.
T/F: Proteins, carbohydrates, and fats all get broken down into NADH and FADH2 in
energy production.
Correct Answer: true
Question 4.
T/F: A fat is a lipid molecules that is a liquid at room temperature.
Correct Answer: false
Question 5.
In RNA, guanine always pairs with:
Correct Answer: cytosine
Question 6.
In RNA, adenine always pairs with:
Correct Answer: uracil
Question 7.
In DNA, adenine always pairs with:
Correct Answer: thymine
Question 8.
Water is considered a polar solvent due to attractive forces known as hydrogen bonds. A
hydrogen bond is:
, Correct Answer: an attractive force between molecules where partially
positive hydrogen atoms are attracted to partially negative atoms of F, O, or N
Question 9.
What is a London force?
Correct Answer: a temporary attraction between atoms due to electron
alignment
Question 10.
What is a dipole-dipole force?
Correct Answer: an attraction between the positive end of one polar molecule
and the negative end of another
Question 11.
What attributes contribute to water's unusual properties?
Correct Answer: 1. geometry of the molecule
2. polarity of the -OH bonds
3. ability of water molecules to hydrogen bond
4. body angle of water molecules to H bond
Question 12.
The H+ concentration of a solution is 7.9 x 10^-13 M. What is the pH?
Correct Answer: 12.1
pH = -log(7.9 x 10^-13)
Question 13.
What represents the free-energy change of a reaction?
Correct Answer: ΔG = Gibbs free energy
• What is the measure of heat content in a reaction? -✓✓ΔH = enthalpy
Question 14.
What is the measure of order of the system in a reaction?
Correct Answer: ΔS = entropy
Question 15.
A fibrous protein is an example of a protein ___.
Correct Answer: conformation
Exam Questions and CORRECT Answers | A+ Guaranteed |
Exam Study Guide
Question 1.
T/F: Hydrogen is called the superglue of the chemical world.
Correct Answer: false
Question 2.
T/F: The time it takes for a compound to flow through a metabolic pathway is called the
flux.
Correct Answer: true
Question 3.
T/F: Proteins, carbohydrates, and fats all get broken down into NADH and FADH2 in
energy production.
Correct Answer: true
Question 4.
T/F: A fat is a lipid molecules that is a liquid at room temperature.
Correct Answer: false
Question 5.
In RNA, guanine always pairs with:
Correct Answer: cytosine
Question 6.
In RNA, adenine always pairs with:
Correct Answer: uracil
Question 7.
In DNA, adenine always pairs with:
Correct Answer: thymine
Question 8.
Water is considered a polar solvent due to attractive forces known as hydrogen bonds. A
hydrogen bond is:
, Correct Answer: an attractive force between molecules where partially
positive hydrogen atoms are attracted to partially negative atoms of F, O, or N
Question 9.
What is a London force?
Correct Answer: a temporary attraction between atoms due to electron
alignment
Question 10.
What is a dipole-dipole force?
Correct Answer: an attraction between the positive end of one polar molecule
and the negative end of another
Question 11.
What attributes contribute to water's unusual properties?
Correct Answer: 1. geometry of the molecule
2. polarity of the -OH bonds
3. ability of water molecules to hydrogen bond
4. body angle of water molecules to H bond
Question 12.
The H+ concentration of a solution is 7.9 x 10^-13 M. What is the pH?
Correct Answer: 12.1
pH = -log(7.9 x 10^-13)
Question 13.
What represents the free-energy change of a reaction?
Correct Answer: ΔG = Gibbs free energy
• What is the measure of heat content in a reaction? -✓✓ΔH = enthalpy
Question 14.
What is the measure of order of the system in a reaction?
Correct Answer: ΔS = entropy
Question 15.
A fibrous protein is an example of a protein ___.
Correct Answer: conformation
