OBJECTIVE LIFE SCIENCE
MOLECULAR BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Some organisms take in oxygen needed for cellular respiration. This oxygen becomes part of their biomass. How is the oxygen returned to the environment?
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by utilizing oxygen to decompose dead remains
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by consuming other organisms as food to absorb their Oxygen
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by utilizing oxygen for cellular respiration
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by releasing energy in the form of heat and oxygen.
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Explanation:
Detailed explanation-1: -Figure 3.2 Plants use carbon dioxide during photosynthesis to produce sugars and oxygen. Animals and plants use oxygen in respiration to produce carbon dioxide.
Detailed explanation-2: -Plants are autotrophs, which means they produce their own food. They use the process of photosynthesis to transform water, sunlight, and carbon dioxide into oxygen, and simple sugars that the plant uses as fuel.
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