EVERYDAY SCIENCE

SCIENCE

BIOLOGICAL SCIENCES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why are the four biological macromolecules essential for life?
A
They all provide an organism with oxygen.
B
They do many important jobs to keep an organism functioning.
C
They provide an organism with food.
D
They are all broken down for energy.
Explanation: 

Detailed explanation-1: -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. Four major types of macromolecules-proteins, carbohydrates, nucleic acids, and lipids-play these important roles in the life of a cell.

Detailed explanation-2: -Proteins. Proteins are one of the most abundant organic molecules in living systems and have the most diverse range of functions of all macromolecules. Proteins may be structural, regulatory, contractile, or protective; they may serve in transport, storage, or membranes; or they may be toxins or enzymes.

Detailed explanation-3: -Nucleic acids are the most important macromolecules for the continuity of life. They carry the genetic blueprint of a cell and carry instructions for the functioning of the cell.

Detailed explanation-4: -Biological macromolecules are organic, meaning that they contain carbon. In addition, they may contain hydrogen, oxygen, nitrogen, phosphorus, sulfur, and additional minor elements.

Detailed explanation-5: -biomolecule, also called biological molecule, any of numerous substances that are produced by cells and living organisms. Biomolecules have a wide range of sizes and structures and perform a vast array of functions. The four major types of biomolecules are carbohydrates, lipids, nucleic acids, and proteins.

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