OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Oxygen is broken down in a chemical reaction with sugars to release energy.
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Sugars are broken down in a chemical reaction with oxygen to release energy.
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Vitamins and minerals are used to build complex molecules that store energy.
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Vitamins and minerals are used to break down complex molecules that store energy.
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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: -To release the energy stored in carbon-containing molecules, such as sugars, autotrophs and heterotrophs break these molecules down in a process called cellular respiration. In this process, the carbons of the molecule are released as carbon dioxide.
Detailed explanation-3: -In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process. Carbon dioxide and water are products of this reaction.
Detailed explanation-4: -Making and Using Food By breaking the chemical bonds in glucose, cells release the stored energy and make the ATP (also known as adenosine triphosphate, an energy-carrying molecule) they need. The process in which glucose is broken down and ATP is made is called cellular respiration.