ECOLOGY
CHEMICAL CYCLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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For cellular respiration.
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For effective removal of CO2 gas.
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For synthesis of all families of macromolecules.
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For synthesis of lipids and carbohydrates only.
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Detailed explanation-1: -Carbon is the primary component of macromolecules, including proteins, lipids, nucleic acids, and carbohydrates.
Detailed explanation-2: -Because a C atom can form covalent bonds to as many as four other atoms, it’s well suited to form the basic skeleton, or “backbone, ” of a macromolecule.
Detailed explanation-3: -Gigantic molecules, called macromolecules, populate a cell and provide it with important functions for life. For example, macromolecules provide structural support, a source of stored fuel, the ability to store and retrieve genetic information, and the ability to speed biochemical reactions.
Detailed explanation-4: -Nearly all of that carbon is obtained from foodstuffs, which removed the CO2 from the atmosphere when they grew. The rise in the human population each year increases the CO2 released from human respiration by 0.007 billion metric tons-about 0.01% of the release from fossil fuel combustion.