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Electron Microscope
It is a sophisticated form of microscope, which can provide a higher magnification of the object (up to 1,00,000 times or more). The electron microscope employs an electron beam emanating from a cathode, instead of light as in the compound microscope..
It is a sophisticated form of microscope, which can provide a higher magnification of the object (up to 1,00,000 times or more). The electron microscope employs an electron beam emanating from a cathode, instead of light as in the compound microscope..Scanning Electron Microscope (SEM)
It is used for the study of three-dimensional surface view of a given specimen. Its resolving power is also around 2 to 10 0 A. fig. 3.5 - Scanning Electron Microscope..
It is used for the study of three-dimensional surface view of a given specimen. Its resolving power is also around 2 to 10 0 A. fig. 3.5 - Scanning Electron Microscope..Elementary Idea of Electron Microscope
In optical microscope, the ray of light can be bent by a lens system. By placing the object and the lens system in such a way, we control the direction of the ray to get a magnified image of the object. Since as 'electron' carriers charge it is possible to change the direction o..
In optical microscope, the ray of light can be bent by a lens system. By placing the object and the lens system in such a way, we control the direction of the ray to get a magnified image of the object. Since as 'electron' carriers charge it is possible to change the direction o..
Microscope electron Animation
Dual Nature of Radiation and Matter..
Dual Nature of Radiation and Matter..Determination of the charge of electrons
Small drops of oil formed by a sprayer are allowed to fall in between a positively charged upper metal plate and a negatively charged lower metal plate. The space between the two plates is irradiated with X-rays. This displaces some electrons of the air molecules, which consequently get ..
Structure of Gametes - Spermatozoan
A sperm is a haploid male gamete which fuses with the ovum to form the diploid zygot..
A sperm is a haploid male gamete which fuses with the ovum to form the diploid zygot..Endoplasmic Reticulum
It is a system of highly branching membranes, which almost fills the space inside the cell membrane. Some of the branches of endoplasmic reticulum are connected to the plasma membrane while some of them are connected to the nuclear membrane. An examination of endoplasmic reticulum under the el..
Nucleus
This is a prominent, spherical or oval structure found at the centre of the cell. It is the controlling centre of all cell activities and has been described as the brain of the cell. It regulates all metabolic and hereditary activities of the cell. The nucleus is composed of the following structur..
This is a prominent, spherical or oval structure found at the centre of the cell. It is the controlling centre of all cell activities and has been described as the brain of the cell. It regulates all metabolic and hereditary activities of the cell. The nucleus is composed of the following structur..Introduction
Every cell, whether it is prokaryotic or eukaryotic, is enclosed in a thin covering called cell membrane. It is also called as plasma membrane or plasma lemma. The cell membrane can only be seen through the electron microscope since its thickness is well below the resolvin..
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