CHEM 103 CSU EXAM 2 QUESTIONS
AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
Question: What defines the structure and primary role of nucleic acids and
nucleotides?
Answer: ✔️✔️ These are the molecules responsible for genetic information
storage and transfer. Nucleotides serve as the individual building blocks
(monomers) that link together to form long chains of DNA or RNA.
Question: What are the defining characteristics and functions of lipids, such as
fats and oils?
Answer: ✔️✔️ Lipids are hydrophobic organic molecules used primarily for
long-term energy storage, insulation, and forming the structural framework of
cell membranes.
Question: How are carbohydrates classified and utilized by living organisms?
Answer: ✔️✔️ Carbohydrates are sugar-based molecules that serve as a primary
energy source and structural material. they range from simple monosaccharides
(like glucose) to complex polysaccharides (like starch or cellulose).
Question: What is the relationship between proteins, peptides, and amino acids?
Answer: ✔️✔️ Amino acids are the basic units that bond together to form peptide
chains, which then fold into complex proteins. These molecules are essential for
nearly every cellular function, acting as enzymes, structural supports, and
signaling molecules.
A component of gasoline is n-octane (c8H18). At room temperature n-octane is
a liquid. What is the predominant intermolecular force causing n-octane to be a
liquid?
, Vanderwaals interactions
why do oil and water not mix
Water forms ice-like cages around oil molecules that decreases the water's
entropy (disorder).
used for long term energy storage in animals
fat/oil/lipid
used to store genetic information
nucleic acid
primary class of molecules that make up catalytic molecules known as enzymes
protein
key polymer in plant cell walls and insect exoskeletons
Carbohydrate
complex organic molecules that must be part of the human diet because we can't
synthesize these in our cells, but they are required for our cellular chemistry
vitamins and minerals
AND ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT RATED A+
Question: What defines the structure and primary role of nucleic acids and
nucleotides?
Answer: ✔️✔️ These are the molecules responsible for genetic information
storage and transfer. Nucleotides serve as the individual building blocks
(monomers) that link together to form long chains of DNA or RNA.
Question: What are the defining characteristics and functions of lipids, such as
fats and oils?
Answer: ✔️✔️ Lipids are hydrophobic organic molecules used primarily for
long-term energy storage, insulation, and forming the structural framework of
cell membranes.
Question: How are carbohydrates classified and utilized by living organisms?
Answer: ✔️✔️ Carbohydrates are sugar-based molecules that serve as a primary
energy source and structural material. they range from simple monosaccharides
(like glucose) to complex polysaccharides (like starch or cellulose).
Question: What is the relationship between proteins, peptides, and amino acids?
Answer: ✔️✔️ Amino acids are the basic units that bond together to form peptide
chains, which then fold into complex proteins. These molecules are essential for
nearly every cellular function, acting as enzymes, structural supports, and
signaling molecules.
A component of gasoline is n-octane (c8H18). At room temperature n-octane is
a liquid. What is the predominant intermolecular force causing n-octane to be a
liquid?
, Vanderwaals interactions
why do oil and water not mix
Water forms ice-like cages around oil molecules that decreases the water's
entropy (disorder).
used for long term energy storage in animals
fat/oil/lipid
used to store genetic information
nucleic acid
primary class of molecules that make up catalytic molecules known as enzymes
protein
key polymer in plant cell walls and insect exoskeletons
Carbohydrate
complex organic molecules that must be part of the human diet because we can't
synthesize these in our cells, but they are required for our cellular chemistry
vitamins and minerals
