Which of the following is NOT a biomolecule? A. Water
B. Carbohydrate
C. Lipid
D. Nucleic Acid
A. Water
The answer is A. Water. Water is not considered a biomolecule as it is an inorganic molecule, while biomolecules are organic compounds that are involved in the structure and function of living organisms. Carbohydrates, lipids, and nucleic acids are all examples of biomolecules.
To determine which of the options is NOT a biomolecule, we need to understand what biomolecules are. Biomolecules are organic molecules that are essential for the structure and function of living organisms. They include carbohydrates, lipids, proteins, and nucleic acids.
To find the answer, we can go through each option and determine if it fits the definition of a biomolecule:
A. Water: Water is not considered a biomolecule. Although it is crucial for life and found in all living organisms, it does not fall into the category of organic molecules that make up the structure and function of living organisms. Therefore, water is NOT a biomolecule.
B. Carbohydrate: Carbohydrates are biomolecules that consist of carbon, hydrogen, and oxygen atoms. They serve as a primary source of energy for living organisms. Carbohydrates include sugars, starches, and cellulose.
C. Lipid: Lipids are another class of biomolecules. They are organic compounds that are insoluble in water but soluble in organic solvents. Lipids serve various functions, including energy storage, insulation, and as structural components of cell membranes.
D. Nucleic Acid: Nucleic acids, such as DNA and RNA, are biomolecules that play a vital role in storing and transmitting genetic information in cells.
Based on this information, we can conclude that the answer is A. Water, as it is not considered a biomolecule.