Intro to Organic Chemistry and Biochemistry EXAM
LATEST 2026-2027 150 QUESTIONS AND 100% Verified
ANSWERS
Which of the following is NOT a component of a phosphoglyceride? - answer>>a monosaccharide
Waxes belong to what organic class of compound? - answer>>mono esters
Steroids are examples of saponifiable esters. - answer>>false
Steroids are drugs which have no useful role in the human body. - answer>>false
The bond that holds monomer units together as amides in a protein is called the ______________ bond.
- answer>>peptide
Which of the following is NOT a part of an amino acid?
a. a side chain
b. amino group
c. monosaccharide
d. carboxyl group - answer>>monosaccharide
One function of peptides is to serve as hormones to regulate body functions. - answer>>true
When two cysteine molecules are oxidized and bound together to form cystine, what type of bond is
formed? - answer>>disulfide
The order of amino acids in a protein chain is called the ______________ structure. - answer>>primary
,What are the monomer units in proteins? - answer>>amino acids
What is formed when proteins are completely denatured? - answer>>amino acids
In the solid and solution form at the isoelectric point, amino acids exist in a form where the carboxyl
group has a negative charge and the amine group has added a proton, possessing a positive charge.
What is this molecule which has both a negative and positive charge called? - answer>>zwitterion
Alanine has a methyl group as a side chain. To which class does it belong? - answer>>nonpolar
What is responsible for maintaining the secondary structure of proteins? - answer>>hydrogen bonds
between carbonyl oxygens and amino hydrogens
The temperature of maximum enzyme activity is called ______________. - answer>>optimum
temperature
Most enzymes are _______________ molecules. - answer>>protein
Enzyme levels in the blood can be used to diagnose heart disease. - answer>>true
Heavy metal ions act on enzymes by _______________________. - answer>>binding to the S in cysteine
Urease catalyzes the hydrolysis of urea. It will also catalyze the hydrolysis of other amides. -
answer>>false
The protein part of an enzyme is called ___________________. - answer>>apoenzyme
Some enzymes will act on the D- enantiomer and not the L-. - answer>>true
, Name the substrate that maltase acts upon. - answer>>maltose
Enzymes act as __________________. - answer>>catalysts
The region on an enzyme's surface where the substrate binds is called the __________________. -
answer>>active site
Human insulin can be made by the bacterium e. coli. - answer>>true
Ribose is the sugar in which of the following?
a. protein
b. both RNA and DNA
c. DNA
d. RNA - answer>>RNA
In DNA replication, what base will be in the complementary strand where the original strand had
Adenine? - answer>>thymine
A DNA nucleotide consists of a phosphate group, a nitrogenous base, and ________________. -
answer>>deoxyribose
What is the monomer unit in DNA? - answer>>nucleotide
Give a words that fits the following definition:
LATEST 2026-2027 150 QUESTIONS AND 100% Verified
ANSWERS
Which of the following is NOT a component of a phosphoglyceride? - answer>>a monosaccharide
Waxes belong to what organic class of compound? - answer>>mono esters
Steroids are examples of saponifiable esters. - answer>>false
Steroids are drugs which have no useful role in the human body. - answer>>false
The bond that holds monomer units together as amides in a protein is called the ______________ bond.
- answer>>peptide
Which of the following is NOT a part of an amino acid?
a. a side chain
b. amino group
c. monosaccharide
d. carboxyl group - answer>>monosaccharide
One function of peptides is to serve as hormones to regulate body functions. - answer>>true
When two cysteine molecules are oxidized and bound together to form cystine, what type of bond is
formed? - answer>>disulfide
The order of amino acids in a protein chain is called the ______________ structure. - answer>>primary
,What are the monomer units in proteins? - answer>>amino acids
What is formed when proteins are completely denatured? - answer>>amino acids
In the solid and solution form at the isoelectric point, amino acids exist in a form where the carboxyl
group has a negative charge and the amine group has added a proton, possessing a positive charge.
What is this molecule which has both a negative and positive charge called? - answer>>zwitterion
Alanine has a methyl group as a side chain. To which class does it belong? - answer>>nonpolar
What is responsible for maintaining the secondary structure of proteins? - answer>>hydrogen bonds
between carbonyl oxygens and amino hydrogens
The temperature of maximum enzyme activity is called ______________. - answer>>optimum
temperature
Most enzymes are _______________ molecules. - answer>>protein
Enzyme levels in the blood can be used to diagnose heart disease. - answer>>true
Heavy metal ions act on enzymes by _______________________. - answer>>binding to the S in cysteine
Urease catalyzes the hydrolysis of urea. It will also catalyze the hydrolysis of other amides. -
answer>>false
The protein part of an enzyme is called ___________________. - answer>>apoenzyme
Some enzymes will act on the D- enantiomer and not the L-. - answer>>true
, Name the substrate that maltase acts upon. - answer>>maltose
Enzymes act as __________________. - answer>>catalysts
The region on an enzyme's surface where the substrate binds is called the __________________. -
answer>>active site
Human insulin can be made by the bacterium e. coli. - answer>>true
Ribose is the sugar in which of the following?
a. protein
b. both RNA and DNA
c. DNA
d. RNA - answer>>RNA
In DNA replication, what base will be in the complementary strand where the original strand had
Adenine? - answer>>thymine
A DNA nucleotide consists of a phosphate group, a nitrogenous base, and ________________. -
answer>>deoxyribose
What is the monomer unit in DNA? - answer>>nucleotide
Give a words that fits the following definition:
