This article throws light upon the five main functions of micro-organisms present in soil. 1. Organic matter decomposition (By this process, plant and animal residues are broken down by micro-organisms into more simpler compounds, other slimy compounds, other slimy intermediate products organic acids and more resistant compound humus. All these products combinedly influence the physical and chemical properties of soil [...]
After reading this article you will learn about observing and examining micro-organisms. Observation of Microbes in Hanging Drop: This method is used for the study of motility, germination or fission of micro-organisms which is not possible when they are killed and fixed in stained preparations. For this observation the following are needed: 1. A depression slide with a circular concavity [...]
This article throws light upon the five important types of microscopes. The types are: 1. Simple Microscope 2. Compound Microscope 3. Monocular Compound Microscope and Its Parts 4. Phase-Contrast Microscope 5. Electron Microscope. Type # 1. Simple Microscope: This is a simple device similar to the convex lens used for viewing a small object that can be seen just by [...]