Notes for C4.2.9 Release of energy in both autotrophs and heterotrophs - IB | RevisionDojo
C4.2.9 Release of energy in both autotrophs and heterotrophs Notes
Release of Energy in Autotrophs and Heterotrophs by Oxidation of Carbon Compounds in Cell Respiration
Organisms require a continuous supply of energy in the form of ATP to carry out vital cellular processes.
This energy is generated through the oxidation of carbon compounds such as carbohydrates and lipids in a process called cell respiration.
Definition
Cell respiration
Cell respiration is a series of metabolic processes that convert energy stored in carbon compounds, such as glucose and fatty acids, into ATP.
Why Do Cells Need Energy?
Cells use ATP for:
Synthesis of Molecules: Building DNA, RNA, and proteins.
Active Transport: Moving ions and molecules across cell membranes.
Movement: Contracting muscles or moving cellular structures.
Heat Production: Maintaining body temperature in mammals and birds.
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Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris.
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Questions
Recap questions
1 of 5
Question 1
Recap question
Muscle cells store glycogen instead of fat even though lipids yield more ATP per gram. Which reason best explains this choice?
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