How do cells obtain energy for their functioning?

Human Physiology: From Cells to Systems (MindTap Course List)
9th Edition
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Lauralee Sherwood
Chapter2: Cell Physiology
Section: Chapter Questions
Problem 10UC: Cells expend energy on what three categories of activities?
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How do cells obtain energy for their functioning?

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Cells perform the metabolic functions through various chemical reactions. The combination of the chemical reactions that takes place within the cell is defines the cell’s metabolism. Catabolism involves the breaking down of complex chemicals into simple molecules whereas anabolism involves the building of complex molecules from simple molecules and definitely requires energy. There are various metabolic pathways through which cells derive the energy for their functioning like glycolysis, Krebs’ cycle, oxidative phosphorylation, fermentation etc.

 

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