CHEM 210 MODULE 2 PRACTICE ASSESSMENT
2026 FULL QUESTIONS AND ANSWERS
COMPLETE PREP SET
◉ T/F: Small elements, such as nitrogen, are common in
biomolecules.
Answer: true
◉ Small elements that are common in biomolecules:
Answer: CHOPS N:
- carbon
- hydrogen
- oxygen
- phosphorous
- sulfur
- nitrogen
◉ T/F: The time it takes for a compound to flow through a metabolic
pathway is called the flux.
Answer: true
,◉ T/F: Proteins, carbohydrates, and fats all get broken down into
NADH and FADH2 in energy production.
Answer: true
◉ T/F: A fat is a lipid molecules that is a liquid at room temperature.
Answer: false
◉ In RNA, guanine always pairs with:
Answer: cytosine
◉ In RNA, adenine always pairs with:
Answer: uracil
◉ In DNA, adenine always pairs with:
Answer: thymine
◉ Water is considered a polar solvent due to attractive forces known
as hydrogen bonds. A hydrogen bond is:
Answer: an attractive force between molecules where partially
positive hydrogen atoms are attracted to partially negative atoms of
F, O, or N
◉ What is a London force?
, Answer: a temporary attraction between atoms due to electron
alignment
◉ What is a dipole-dipole force?
Answer: an attraction between the positive end of one polar
molecule and the negative end of another
◉ What attributes contribute to water's unusual properties?
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
◉ The H+ concentration of a solution is 7.9 x 10^-13 M. What is the
pH?
Answer: 12.1
pH = -log(7.9 x 10^-13)
◉ What represents the free-energy change of a reaction?
Answer: ΔG = Gibbs free energy
2026 FULL QUESTIONS AND ANSWERS
COMPLETE PREP SET
◉ T/F: Small elements, such as nitrogen, are common in
biomolecules.
Answer: true
◉ Small elements that are common in biomolecules:
Answer: CHOPS N:
- carbon
- hydrogen
- oxygen
- phosphorous
- sulfur
- nitrogen
◉ T/F: The time it takes for a compound to flow through a metabolic
pathway is called the flux.
Answer: true
,◉ T/F: Proteins, carbohydrates, and fats all get broken down into
NADH and FADH2 in energy production.
Answer: true
◉ T/F: A fat is a lipid molecules that is a liquid at room temperature.
Answer: false
◉ In RNA, guanine always pairs with:
Answer: cytosine
◉ In RNA, adenine always pairs with:
Answer: uracil
◉ In DNA, adenine always pairs with:
Answer: thymine
◉ Water is considered a polar solvent due to attractive forces known
as hydrogen bonds. A hydrogen bond is:
Answer: an attractive force between molecules where partially
positive hydrogen atoms are attracted to partially negative atoms of
F, O, or N
◉ What is a London force?
, Answer: a temporary attraction between atoms due to electron
alignment
◉ What is a dipole-dipole force?
Answer: an attraction between the positive end of one polar
molecule and the negative end of another
◉ What attributes contribute to water's unusual properties?
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
◉ The H+ concentration of a solution is 7.9 x 10^-13 M. What is the
pH?
Answer: 12.1
pH = -log(7.9 x 10^-13)
◉ What represents the free-energy change of a reaction?
Answer: ΔG = Gibbs free energy
