Class 12 Chemistry — Chapter 5: Biomolecules

What you'll learn

• ▸Introduction and Definition of Carbohydrates
• ▸Classification of Carbohydrates
• ▸Classification of Monosaccharides
• ▸Preparation of Glucose
• ▸Open-Chain Structure of Glucose
• ▸D/L Configuration of Carbohydrates
• ▸Limitations of the Open-Chain Structure of Glucose

Chapter Summary

--- PAGE 1 --- Unit 10 Biomolecules Objectives After studying this Unit, you will be able to • explain the characteristics of biomolecules like carbohydrates, proteins and nucleic acids and hormones; • classify carbohydrates, proteins, nucleic acids and vitamins on the basis of their structures; • explain the difference between DNA and RNA; • describe the role of biomolecules in biosystem. "It is the harmonious and synchronous progress of chemical reactions in body which leads to life". A living system grows, sustains and reproduces itself. The most amazing thing about a living system is that it is composed of non-living atoms and molecules. The pursuit of knowledge of what goes on chemically within a living system falls in the domain of *biochemistry*. Living systems are made up of various complex biomolecules like carbohydrates, proteins, nucleic acids, lipids, etc. Proteins and carbohydrates are essential constituents of our food. These biomolecules interact with ea…

Practice Questions from this Chapter

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1. Explain carbohydrate types simply. Get Solution →
2. Describe how glucose powers cells. Get Solution →
3. Identify essential biomolecule roles. Get Solution →
4. What are carbohydrates that cannot be hydrolyzed further to give a simpler unit called? Get Solution →
5. The hydrolysis of one molecule of sucrose yields which two monosaccharides? Get Solution →
6. Chemically, carbohydrates are defined as optically active polyhydroxy aldehydes or what other type of compound? Get Solution →
7. Which polysaccharide is hydrolyzed commercially to obtain glucose? Get Solution →
8. Based on its functional group and number of carbon atoms, glucose is classified as a(n) ____. Get Solution →

Did you know?

• 💡 Our bodies contain more protein than any other molecule except water.
• 💡 Cellulose, a type of sugar, is the most abundant organic polymer on Earth.
• 💡 Chitin, which makes up insect exoskeletons, is actually a complex carbohydrate.
• 💡 The human brain consumes about 20% of your daily sugar energy.
• 💡 Sugars like glucose can be converted into useful plastics by certain microbes.

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