BIOCHEMISTRY TEST BANK 10TH EDITION QUESTION WITH ANSWERS [VERIFIED &CORRECT]

BIOCHEMISTRY TEST BANK 10TH EDITION QUESTION WITH ANSWERS [VERIFIED &CORRECT]
ANSWERS [VERIFIED &CORRECT]
What are the four major classes of molecules studied in biochemistry (in
monomeric form)?
lipids, nucelotides, monosaccharides, amino acids
Polymers of sugars are __________.
carbohydrates
Amino acids are the building blocks of _________.
proteins
What is the Henderson-Hasselbalch equation?
pH = pKa + log([A-]/[HA])
[HA] is the _____________ and [A-] is the ____________.
tris acid (HCl), tris base
Which of the following is the most abundant element in the human body?
A) nitrogen
B) carbon
C) oxygen
D) phosphorous
E) none of the above
B) carbon
Which of the major types of biomolecules is never found in a polymeric form?
A) amino acids
B) carbohydrates
C) nucleotides
D) lipids
E) none of the above
D) lipids
Which of the following biopolymers is correctly paired with the bond that forms
between the monomers?
A) protein: ester bond
B) polysaccharide: glycosidic bond
C) DNA: phosphate bond
D) RNA: phosphate bondE)all of the above
B) polysaccharide: glycosidic bond
Which of the biopolymers is correctly paired with its major function?
A) protein: information encoding
B) nucleic acids: energy storage
C) lipids: information encoding
D) polysaccharide: energy storage
E) none of the above
D) polysaccharide: energy storage
The similarity of one organism to another (for example a bacteria versus a
human) is most easily done by comparing which biopolymer?
A) nucleic acids
B) polysaccharides
C) proteins
D) lipids
E) all of the above
A) nucleic acids
In a water molecule, hydrogens are partially _____; oxygens are partially _____.
A) negative; negative
B) negative; positive
C) positive; positive
D) positive; negative
E) none of the above
D) positive; negative
At any given moment, a single water molecule participates in _____ strong
hydrogen bond(s). The role played by the water molecule is best characterized as
_____.
A) two ; one H-bond donor, one H-bond acceptor
B) two ; two H-bond donor
C) two ; two H-bond acceptor
D) one; H-bond donor
E) one; H-bond acceptor
A) two ; one H-bond donor, one H-bond acceptor
In a hydrogen bond between a water molecule and another biomolecule, _____.
A) a hydrogen ion on the water molecule forms an ionic bond with a hydride ion
on the other molecule
B) the hydrogen bond will typically form between a hydrogen atom and either a
nitrogen, sulfur, or oxygen atom
C) the partial charge on a hydrogen of the water interacts with the partial charge
on a hydrogen of the other molecule
D) a hydrogen on the water molecule forms a covalent bond to an oxygen or
nitrogen atom on the other molecule
E) the hydrogen atom is located between an oxygen atom of the water and a
carbon atom of the other molecule
B) the hydrogen bond will typically form between a hydrogen atom and either a nitrogen,
sulfur, or oxygen atom

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