OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Releasing energy from food using oxygen
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Producing waste
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Responding to changes in the environment
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Producing offspring
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Detailed explanation-1: -cellular respiration, the process by which organisms combine oxygen with foodstuff molecules, diverting the chemical energy in these substances into life-sustaining activities and discarding, as waste products, carbon dioxide and water.
Detailed explanation-2: -Cellular respiration is the process in which cells break down molecules for energy. The cells use oxygen to break down food in the form of glucose to produce water and release carbon dioxide. In this reaction, energy is produced in the form of ATP that is used by the cell for its various activities.
Detailed explanation-3: -Cellular respiration is the process that occurs in the mitochondria of organisms (animals and plants) to break down sugar in the presence of oxygen to release energy in the form of ATP. This process releases carbon dioxide and water as waste products.