Biochemistry Chapter 1-4 Assessment Questions with
Answers Latest Update 2024 Test
The water content in the human body is approximately - Correct Answer C. 70 %
The four most abundant chemical elements in living systems are - Correct Answer B.
Hydrogen, carbon, nitrogen, and oxygen
A large majority of proteins contain - Correct Answer D. Sulfur
Which of the following statements is false? - Correct Answer Proteins are the only
biological polymer that can catalyze biochemical reactions
_____ are the basis of many biochemical reactions and pathways - Correct Answer
Oxidation-reduction reactions
Many biochemical reactions that form biopolymers from monomeric units involve the
removal of - Correct Answer Water
The principal component of a biological membrane is a - Correct Answer Triglyceride
The chemical element of ___ has a role in both transfer of energy as well as in the
structure of nucleic acids - Correct Answer Phosphorus
Which of the following is NOT a major class of biological macromolecules? - Correct
Answer Chlorophylls
An amphipathic molecule provides the foundation for biological membranes because
they have both ____ and ____ functional groups - Correct Answer Hydrophobic,
Hydrophillic
Genomics is concerned with the entire - Correct Answer Genome
Which linkages occur extensively in nucleotides - Correct Answer Phosphate ester
Sugars such as glucose are monomers of polysaccharides that are linked together
when covalent bonds form between one _____ groups of one sugar to the same group
on another sugar. - Correct Answer Hydroxyl
The role of DNA as the _____ material was confirmed by transforming streptococci in
experiments performed several years after the famous watson and crick decscription of
dna structure - Correct Answer hereditary
, ____ is generally in reference to how the flow of info is transferred from nucleic acid to
protein - Correct Answer Central Dogma
Under acidic conditions, amino groups are mostly - Correct Answer Fully Protonated
When monomers covalently attach to each other to form a macromolecule, what
product is often formed? - Correct Answer Water
The condensation of the α-amino and α-carboxyl groups of two amino acids results in
the formation of a - Correct Answer Peptide bond
The _____ projection of the ring from a monosaccharide always shows a flat plane with
one edge projecting out of the page (using thicker lines) - Correct Answer Haworth
Sugars with six carbons can form ring structures known as - Correct Answer Pyranose
rings
A deoxyribose unit in DNA is a - Correct Answer Sugar
Lipids self associated in aqueous solvent to form bilayers because they are - Correct
Answer Amphipathic
Each of the following is a noncovalent interaction except - Correct Answer Carbon-
hydrogen bond
Which of the following is an important noncovalent interaction in biochem - Correct
Answer Hydrogen bonds
which of the following is false when considering van der walls interactions - Correct
Answer They are not important in determining the stability of three dimensional
structures of proteins
which of the following in biological compounds are sufficiently electronegative to serve
as strong donors in a hydrogen bond - Correct Answer Oxygen and nitrogen
Hydrogen bond donors must be covalently attatched to atoms that are - Correct
Answer electronegative
which of the following is true of hydrophobic molecules - Correct Answer all of the
above
which of the following can serve as both a hydrogen bond donor and acceptor - Correct
Answer Water
Amphipathic moleculars are - Correct Answer Both polar and nonpolar
Answers Latest Update 2024 Test
The water content in the human body is approximately - Correct Answer C. 70 %
The four most abundant chemical elements in living systems are - Correct Answer B.
Hydrogen, carbon, nitrogen, and oxygen
A large majority of proteins contain - Correct Answer D. Sulfur
Which of the following statements is false? - Correct Answer Proteins are the only
biological polymer that can catalyze biochemical reactions
_____ are the basis of many biochemical reactions and pathways - Correct Answer
Oxidation-reduction reactions
Many biochemical reactions that form biopolymers from monomeric units involve the
removal of - Correct Answer Water
The principal component of a biological membrane is a - Correct Answer Triglyceride
The chemical element of ___ has a role in both transfer of energy as well as in the
structure of nucleic acids - Correct Answer Phosphorus
Which of the following is NOT a major class of biological macromolecules? - Correct
Answer Chlorophylls
An amphipathic molecule provides the foundation for biological membranes because
they have both ____ and ____ functional groups - Correct Answer Hydrophobic,
Hydrophillic
Genomics is concerned with the entire - Correct Answer Genome
Which linkages occur extensively in nucleotides - Correct Answer Phosphate ester
Sugars such as glucose are monomers of polysaccharides that are linked together
when covalent bonds form between one _____ groups of one sugar to the same group
on another sugar. - Correct Answer Hydroxyl
The role of DNA as the _____ material was confirmed by transforming streptococci in
experiments performed several years after the famous watson and crick decscription of
dna structure - Correct Answer hereditary
, ____ is generally in reference to how the flow of info is transferred from nucleic acid to
protein - Correct Answer Central Dogma
Under acidic conditions, amino groups are mostly - Correct Answer Fully Protonated
When monomers covalently attach to each other to form a macromolecule, what
product is often formed? - Correct Answer Water
The condensation of the α-amino and α-carboxyl groups of two amino acids results in
the formation of a - Correct Answer Peptide bond
The _____ projection of the ring from a monosaccharide always shows a flat plane with
one edge projecting out of the page (using thicker lines) - Correct Answer Haworth
Sugars with six carbons can form ring structures known as - Correct Answer Pyranose
rings
A deoxyribose unit in DNA is a - Correct Answer Sugar
Lipids self associated in aqueous solvent to form bilayers because they are - Correct
Answer Amphipathic
Each of the following is a noncovalent interaction except - Correct Answer Carbon-
hydrogen bond
Which of the following is an important noncovalent interaction in biochem - Correct
Answer Hydrogen bonds
which of the following is false when considering van der walls interactions - Correct
Answer They are not important in determining the stability of three dimensional
structures of proteins
which of the following in biological compounds are sufficiently electronegative to serve
as strong donors in a hydrogen bond - Correct Answer Oxygen and nitrogen
Hydrogen bond donors must be covalently attatched to atoms that are - Correct
Answer electronegative
which of the following is true of hydrophobic molecules - Correct Answer all of the
above
which of the following can serve as both a hydrogen bond donor and acceptor - Correct
Answer Water
Amphipathic moleculars are - Correct Answer Both polar and nonpolar
