Light microscopy, Biology


A study of the structure of organisms is an essential requirement of biology. However, unaided human eye cannot see objects smaller than 0.1 mrn(100 p) in diameter. Therefore,various devices were discovered to increase his ability to observe minute structures. The knowledge of these devices is responsible for understanding structure and function of cell

The earliest microscopes had only one lens between the object and the eye and were, therefore, called simple microscopes. The modem microscopes, on the other hand have two lenses, the objective and the eye piece, in a series, to view an object. These are known as compound microscopes (Figure shown below).

2475_compound microscope.jpg

With the help of a compound microscope one can view the objects at a very high magnification. However, the important property of a light microscope is not its magnifying power but its resolving power. Let us now explain the terms magnifying power and resolving power. The magnifying power of a microscope is its ability to show an enlarged 1 or magnified view of an object to the eye. The resolving power, on the other hand,represents the ability of the microscope to show the fine details in the object to the eye


Posted Date: 12/10/2012 12:32:32 AM | Location : United States

Related Discussions:- Light microscopy, Assignment Help, Ask Question on Light microscopy, Get Answer, Expert's Help, Light microscopy Discussions

Write discussion on Light microscopy
Your posts are moderated
Related Questions
Manx cats are heterozygous for a dominant mutation that results in no tails or very short tails, large hind legs and a distinctive gait. The mating of two Manx cats yields two Manx

Intracellular sodium concentration of the motor neuron A complete motor neuron is removed from a frog and placed in normal physiological saline at 1 AM.  The neuron is healthy.

Explain Food Applications of pullulan The food applications of pullulan include:  Due to its oxygen barrier properties, it can be used as a packaging material for fat /

Define the Beer's Law - Nutritional  Biochemistry? Beer's law states that the concentration of a substance is directly proportional to the amount of light absorbed or inversely

OBJECTION OF CELL THEORY (REASONS OF DISCARTION) (i)       Living organism are composed of various types of cells and their product but members of monera & protista don't have

State the purpose of a neuropsychological screening The purpose of a neuropsychological screening examination is to determine if there is reasonable evidence, beyond initial cl

SODIUM The element is available in table salt. A proper balance of sodium and potassium is essential. Its absorption is under control of aldasterone. The various f

The  regulation mechanism involves: a)  The hormones catecholamines (epinephrine, norepinephrine) and glucagon cause the increase in CAMP levels in cells. This CAMP activates p

What is a pH meter? A pH meter is a device used for measuring. pH of any unknown solution. It is composed of: a) A reference electrode b) Glass electrode whose potential