QUESTION A The synthesis of macromolecules is thermodynamically favourable due t
ID: 52300 • Letter: Q
Question
QUESTION A
The synthesis of macromolecules is thermodynamically favourable due to which of the following?
The energy required for the synthesis of macromolecules comes indirectly from substrate-level phosphorylation, oxidative phosphorylation, or photophosphorylation.
The energy required comes from the synthesis of macromolecules from ribonucleotide triphosphates or deoxyribonucleotide triphosphates.
The concentration of the reactants (monomers) and products (the macromolecule) completely drives polymer formation.
The macromolecule possesses less free energy than the monomers, thus no energy is needed.
a and b
QUESTION B
Which of the following statements is incorrect?
Lipids are synthesized as linear chains of fatty acids.
Polysaccharides are synthesized as linear or branched chains of monosaccharides.
Nucleic acids are synthesized as linear chains of nucleotides.
Polypeptides are synthesized as linear chains of amino acids.
None of the above.
a.The energy required for the synthesis of macromolecules comes indirectly from substrate-level phosphorylation, oxidative phosphorylation, or photophosphorylation.
b.The energy required comes from the synthesis of macromolecules from ribonucleotide triphosphates or deoxyribonucleotide triphosphates.
c.The concentration of the reactants (monomers) and products (the macromolecule) completely drives polymer formation.
d.The macromolecule possesses less free energy than the monomers, thus no energy is needed.
e.a and b
QUESTION B
Which of the following statements is incorrect?
a.Lipids are synthesized as linear chains of fatty acids.
b.Polysaccharides are synthesized as linear or branched chains of monosaccharides.
c.Nucleic acids are synthesized as linear chains of nucleotides.
d.Polypeptides are synthesized as linear chains of amino acids.
e.None of the above.
Explanation / Answer
Question A
The correct option is (d) The macromolecule possesses less free energy than the monomers, thus no energy is needed.
Question B
The incorrect option is (a) Lipids are synthesized as linear chains of fatty acids.