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Chemical Composition of Biomolecules Video Lecture | Biology Class 11 - NEET

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FAQs on Chemical Composition of Biomolecules Video Lecture - Biology Class 11 - NEET

1. What are the four major biomolecules?
Ans. The four major biomolecules are carbohydrates, lipids, proteins, and nucleic acids. These biomolecules are essential for the functioning and structure of living organisms.
2. What is the chemical composition of carbohydrates?
Ans. Carbohydrates are composed of carbon, hydrogen, and oxygen atoms in a ratio of 1:2:1. They are also known as saccharides and are classified into three types: monosaccharides, disaccharides, and polysaccharides.
3. What is the chemical composition of lipids?
Ans. Lipids are composed of carbon, hydrogen, and oxygen atoms. However, unlike carbohydrates, lipids have a higher ratio of carbon and hydrogen atoms compared to oxygen. Lipids include fats, oils, phospholipids, and steroids.
4. What is the chemical composition of proteins?
Ans. Proteins are composed of carbon, hydrogen, oxygen, nitrogen, and sometimes sulfur atoms. These atoms combine to form amino acids, which are the building blocks of proteins. There are 20 different types of amino acids that can be arranged in various sequences to create different proteins.
5. What is the chemical composition of nucleic acids?
Ans. Nucleic acids are composed of carbon, hydrogen, oxygen, nitrogen, and phosphorus atoms. They are made up of nucleotides, which consist of a sugar molecule, a phosphate group, and a nitrogenous base. The two types of nucleic acids are DNA (deoxyribonucleic acid) and RNA (ribonucleic acid), which play crucial roles in storing and transmitting genetic information.
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