Chem 103 Final Exam | Verified Exam Questions and Answers | Latest
Updated Study Material 2026
Question:
How many atoms are there in a single molecule of sucrose (C12H22O11)?
Answer:
45
Question:
Nitrogen makes _____ bonds
Answer:
3
Question:
The geometry about carbon when it makes bonds to four other atoms is
Answer:
tetrahedral
Question:
Which one the following is not an example of a condensation reaction? -The reaction of glucose and
fructose to form sucrose. -The reaction of fatty acids and glycerol to form a triglyceride. -The reaction of
cellulose and water in the presence of cellulase to form glucose.
Answer:
The reaction of cellulose and water in the presence of cellulase to form glucose.
Question:
The solubility concept like dissolves like is not involved in which one of the following
Answer:
digestion of cellulose
Question:
Which of the following represent true statements about trans fats? They are present in vegetable oils.
Answer:
They are produced in the process of partial hydrogenation. Their hydrocarbon chains pack well together
like saturated fats. They do not come from animal sources. Their presence in food is regulated by the
FDA.
,Question:
A trans fat is more stable than a cis fat.
Answer:
They are produced in the process of partial hydrogenation. -Their hydrocarbon chains pack well together
like saturated fats. -They do not come from animal sources. -Their presence in food is regulated by the
FDA. -A trans fat is more stable than a cis fat.
Question:
We (and most other living organisms) can not digest cellulose. Which of the following are reasons why?
Answer:
Cellulose polymers are rigidly straight and the enzyme in us (amylase) fits and reacts with a bent
structure
Question:
Many proteins are soluble in water, yet they contain amino acid R groups that are hydrocarbon-like. For
example, look at the structures of leucine (leu), isoleucine (ile), valine (val), or phenylalanine (phe).
What is the likely explanation for how this is possible?
Answer:
Proteins fold up so that the hydrocarbon parts are inside surrounded by parts of the protein that contain
more water soluble hydrogen bonding groups on the outside (much like the way soaps and dispersants
work).
Question:
A tripeptide made from the amino acids alanine, phenylalanine, and threonine is shown in this JSmol
molecule (Links to an external site.)Links to an external site.. If the convention for naming peptides (and
protein sequences) is the amino end first and the carboxylic acid end last, what is the correct name for
this peptide?
Answer:
Phe-Ala-Thr
Question:
The secondary structure of a protein is .
Answer:
the local 3-D structure of a protein polymer chain (inside an amino acid)
,Question:
Of the four biological classes of compounds that we've studied, in which one is hydrogen bonding not
important?
Answer:
triglycerides
Question:
Of the processes involving DNA/RNA listed below that we've discussed, which one does not involve
RNA
Answer:
replication
Question:
Of the following which is not a difference between DNA and RNA
Answer:
polypeptide chain versus polysaccharide chain
Question:
Which of the following is not a part of the primary structure of DNA?
Answer:
a fatty acid
Question:
Which one of the following is not a hydrogen-bonding pattern
Answer:
N---H-C
Question:
The quaternary structure of proteins is .
Answer:
the interactions between amino acids in different protein polymer chains within the same protein
, Question:
The primary structure of proteins is .
Answer:
the ordering of amino acids in the protein polymer chain
Question:
If the vitamins listed below that were discussed in the lecture and whose structures are on the slides,
which one is most fat soluble?
Answer:
Vitamin E
Question:
Of the NSAIDS (nonsteroidal anti inflammatory drugs) that were discussed in the notes, which one do
you think is most hydrophobic (fat soluble)?
Answer:
Ibuprofen
Question:
Of the natural fibers, listed below, that were discussed in the notes which one is not predominantly
cellulose?
Answer:
Wool
Question:
The secondary structure of silk is predominantly .
Answer:
Beta-sheet
Question:
Of the fibers discussed in the notes that are formed through a condensation reaction, which one does not
contain amide linkages?
Answer:
Polyesters
Updated Study Material 2026
Question:
How many atoms are there in a single molecule of sucrose (C12H22O11)?
Answer:
45
Question:
Nitrogen makes _____ bonds
Answer:
3
Question:
The geometry about carbon when it makes bonds to four other atoms is
Answer:
tetrahedral
Question:
Which one the following is not an example of a condensation reaction? -The reaction of glucose and
fructose to form sucrose. -The reaction of fatty acids and glycerol to form a triglyceride. -The reaction of
cellulose and water in the presence of cellulase to form glucose.
Answer:
The reaction of cellulose and water in the presence of cellulase to form glucose.
Question:
The solubility concept like dissolves like is not involved in which one of the following
Answer:
digestion of cellulose
Question:
Which of the following represent true statements about trans fats? They are present in vegetable oils.
Answer:
They are produced in the process of partial hydrogenation. Their hydrocarbon chains pack well together
like saturated fats. They do not come from animal sources. Their presence in food is regulated by the
FDA.
,Question:
A trans fat is more stable than a cis fat.
Answer:
They are produced in the process of partial hydrogenation. -Their hydrocarbon chains pack well together
like saturated fats. -They do not come from animal sources. -Their presence in food is regulated by the
FDA. -A trans fat is more stable than a cis fat.
Question:
We (and most other living organisms) can not digest cellulose. Which of the following are reasons why?
Answer:
Cellulose polymers are rigidly straight and the enzyme in us (amylase) fits and reacts with a bent
structure
Question:
Many proteins are soluble in water, yet they contain amino acid R groups that are hydrocarbon-like. For
example, look at the structures of leucine (leu), isoleucine (ile), valine (val), or phenylalanine (phe).
What is the likely explanation for how this is possible?
Answer:
Proteins fold up so that the hydrocarbon parts are inside surrounded by parts of the protein that contain
more water soluble hydrogen bonding groups on the outside (much like the way soaps and dispersants
work).
Question:
A tripeptide made from the amino acids alanine, phenylalanine, and threonine is shown in this JSmol
molecule (Links to an external site.)Links to an external site.. If the convention for naming peptides (and
protein sequences) is the amino end first and the carboxylic acid end last, what is the correct name for
this peptide?
Answer:
Phe-Ala-Thr
Question:
The secondary structure of a protein is .
Answer:
the local 3-D structure of a protein polymer chain (inside an amino acid)
,Question:
Of the four biological classes of compounds that we've studied, in which one is hydrogen bonding not
important?
Answer:
triglycerides
Question:
Of the processes involving DNA/RNA listed below that we've discussed, which one does not involve
RNA
Answer:
replication
Question:
Of the following which is not a difference between DNA and RNA
Answer:
polypeptide chain versus polysaccharide chain
Question:
Which of the following is not a part of the primary structure of DNA?
Answer:
a fatty acid
Question:
Which one of the following is not a hydrogen-bonding pattern
Answer:
N---H-C
Question:
The quaternary structure of proteins is .
Answer:
the interactions between amino acids in different protein polymer chains within the same protein
, Question:
The primary structure of proteins is .
Answer:
the ordering of amino acids in the protein polymer chain
Question:
If the vitamins listed below that were discussed in the lecture and whose structures are on the slides,
which one is most fat soluble?
Answer:
Vitamin E
Question:
Of the NSAIDS (nonsteroidal anti inflammatory drugs) that were discussed in the notes, which one do
you think is most hydrophobic (fat soluble)?
Answer:
Ibuprofen
Question:
Of the natural fibers, listed below, that were discussed in the notes which one is not predominantly
cellulose?
Answer:
Wool
Question:
The secondary structure of silk is predominantly .
Answer:
Beta-sheet
Question:
Of the fibers discussed in the notes that are formed through a condensation reaction, which one does not
contain amide linkages?
Answer:
Polyesters
