Carbohydrates: Understanding Their Classification and Functions

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CARBOHYDRATES

Carbohydrates

Most of the matter in plants, except water, is carbohydrate material.

Carbohydrates account for seventy-five percent of dry plant material and are produced by photosynthesis.

Cellulose: structural element.

Starch/glycogen: energy reservoir. - small amount in human body.

Plant products are source of carbohydrates. - Average human diet contains two-thirds of carbohydrates.

Occurrence and Functions

Photosynthesis

A process in which plants produce carbohydrates using carbon dioxide, water and solar energy.

Chlorophyll

Functions of Carbohydrates in the Human Body

Classification of Carbohydrates

Classification Based on Size

Classification of Carbohydrates

Chirality: Handedness in Molecules.

Practice Exercise.

Chirality: Handedness in Molecules.

Stereochemistry.

Stereoisomers.

Representation of Organic Molecules.

Stereochemistry

Stereochemistry.

Fischer Projection Formulas.

Stereochemistry.

Fischer Projection Formulas.

Stereochemistry.

Properties of Enantiomers.

Properties of light.

Properties of Enantiomers.

Two Types:

Properties of Enantiomers.

Classification of Monosaccharides.

Aldoses: Monosaccharides with one aldehyde group.

Combined number of carbon atoms and functional group:

Classification of Monosaccharides.

The family of D-ketoses.

Classification of Monosaccharides.

Biochemically Important Monosaccharides.

Formation of Cyclic Structures.

Cyclic Forms of Monosaccharides.

Haworth Projection Formulas.

Reactions of Monosaccharides.

Reactions of Monosaccharides

Disaccharides

Polysaccharides

Storage Polysaccharides

Two. Amylopectin.

Storage Polysaccharides

Structural polysaccharides serve as a structural element in plant cell walls and animal exoskeletons.

Cellulose.

Structural Polysaccharides

Chitin.

Hyaluronic Acid.

Acidic Polysaccharides

Glycolipids and Glycoproteins

Glycoprotein

Overview

This lecture covers the significance of carbohydrates in biology, focusing on their classification, functions, and molecular properties, highlighting the impact of carbohydrate structures on biological processes. It serves as an educational resource for understanding the fundamental aspects of carbohydrates.

Key Points

1Carbohydrates are the primary source of energy in the human diet
2They are classified into monosaccharides, disaccharides, oligosaccharides, and polysaccharides
3Chirality plays a crucial role in how carbohydrates interact with biological systems
4Different monosaccharides have unique properties and functions in metabolism
5The cyclical structure of carbohydrates influences their biological activity

Details

Category: Biology and Natural Sciences

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