Multiple Choice
Which of the following molecules is a primary source of energy for ATP production during cellular respiration?
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8. Respiration
Introduction to Cellular Respiration
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What is the primary difference between the terms 'cellular respiration' and 'respiration' in biology?
A
Cellular respiration refers to the metabolic process of converting glucose into ATP, while respiration refers to the physical act of breathing.
B
Cellular respiration is a process that requires oxygen, while respiration does not involve oxygen.
C
Cellular respiration occurs only in plants, while respiration occurs only in animals.
D
Cellular respiration is a process that occurs in the mitochondria, while respiration occurs in the chloroplasts.
Verified step by step guidance1
Understand that 'cellular respiration' and 'respiration' are terms that are often confused but refer to different biological processes.
Cellular respiration is a metabolic process that occurs in the mitochondria of cells, where glucose is converted into ATP (adenosine triphosphate), the energy currency of the cell. This process requires oxygen and produces carbon dioxide and water as byproducts.
Respiration, in a general biological context, refers to the physical act of breathing, which involves the inhalation of oxygen and exhalation of carbon dioxide. This process is part of the respiratory system in animals.
Clarify that cellular respiration is a biochemical process that occurs at the cellular level in both plants and animals, while respiration as breathing is a physiological process that occurs in animals.
Note that cellular respiration is not limited to plants; it occurs in the mitochondria of both plant and animal cells, whereas the act of respiration (breathing) is specific to animals and involves organs like lungs or gills.
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