Concept explainers

Answer to Problem 1TQ
Metabolic pathway is often characterized as a sequence of multiple reactions like anabolism and catabolism.
Therefore, option (c) is correct.
Explanation of Solution
Justify reasons for the correct statement:
Metabolic pathways include number of
Option (c) is given as “are often organized as a multistep sequence of reactions”.
Hence, option (c) is correct.
Justify reasons for the incorrect statements:
Option (a) is given as “always break down large molecule into smaller units”.
Catabolism is the reaction in which larger molecules get converted into simpler molecules or the molecules in their polymer forms are getting converted into their monomeric units. Hence, it is a wrong answer.
Option (b) is given as “only link smaller molecules together to create
Anabolism is the reaction in which simpler molecules are linked together to form macromolecules like simple amino acids linked together to form peptide and larger proteins. Hence, it is a wrong answer.
Option (d) is given as “occur only in mitochondria”.
Metabolic pathways occur in the cell cytoplasm and the energy oxidation process alone takes place inside mitochondria. Hence, it is a wrong answer.
Hence, options (a), (b), and (d) are incorrect.
Metabolic pathway is an essential process in all living forms for energy production and building machinery, without any life form cannot exist.
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Chapter 5 Solutions
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