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NCERT Textbook: Biomolecules | Science & Technology for UPSC CSE PDF Download

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FAQs on NCERT Textbook: Biomolecules - Science & Technology for UPSC CSE

1. What are biomolecules and why are they important in NEET?
Ans. Biomolecules are organic molecules that are essential for the functioning of living organisms. They include carbohydrates, proteins, lipids, nucleic acids, and enzymes. In NEET, the study of biomolecules is important as it helps in understanding the structure, function, and interactions of these molecules, which is crucial for understanding various biological processes and medical applications.
2. How are carbohydrates classified and what are their functions?
Ans. Carbohydrates are classified into monosaccharides, disaccharides, and polysaccharides. Monosaccharides are simple sugars, while disaccharides are formed by the condensation of two monosaccharide units. Polysaccharides are complex carbohydrates composed of many monosaccharide units. Carbohydrates serve as a major source of energy, provide structural support, and play a role in cell recognition and communication.
3. What are proteins and what are their functions in living organisms?
Ans. Proteins are macromolecules composed of amino acids. They play numerous essential roles in living organisms. Proteins act as enzymes, catalysts that facilitate biochemical reactions. They are also involved in cell signaling, transport of molecules, immune response, and structural support. Additionally, proteins contribute to muscle contraction, hormone production, and DNA replication.
4. What are lipids and how do they contribute to the human body?
Ans. Lipids are a diverse group of biomolecules that include fats, oils, phospholipids, and steroids. They are important for energy storage, insulation, and protection of vital organs. Lipids also serve as structural components of cell membranes and play a role in cell signaling. Additionally, some lipids act as hormones and are involved in various physiological processes.
5. What are nucleic acids and why are they crucial for genetic information?
Ans. Nucleic acids, such as DNA and RNA, are biomolecules that store and transmit genetic information. They are composed of nucleotides, which consist of a sugar, a phosphate group, and a nitrogenous base. DNA carries the genetic instructions for the development and functioning of all living organisms. RNA plays a role in protein synthesis, gene regulation, and other cellular processes. Understanding nucleic acids is fundamental in studying genetics and heredity, which are important topics in NEET.
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