Which of the following macromolecules are made from simple sugars?
Which of the following macromolecules are made from simple sugars?
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Why are macromolecules continually being synthesized in a cell?
| a. | Macromolecules typically have a half-life in the order of days. | |
| b. | If the energy produced by the cell through aerobic respiration is not used, components of the cell will become oxidized. | |
| c. | Growth of the cell requires the synthesis of new components. | |
| d. | a and c. | |
| e. | b and c. |
The synthesis of macromolecules is thermodynamically favourable due to which of the following?
| 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. |
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. |
