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What would happen to the water when specimen was placed in electron microscope if dehydration was not carried out?
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How are electron microscopes different from light microscopes?
An electron microscope can produce greater magnification, and thereby make smaller objects visible, than a light microscope can.Short Answer:Light microscopes can typically resolve structures to a fraction of a micron compared to electron microscopes which in practice achieve resolutions of a few nanometers. Practically, electron microscope can have almost a thousand times greater resolution than an optical microscope.The useful magnification of an electron microscope is also in the range of a thousand times greater than an optical microscope.The actual performance of any microscope depends on its design and lensing system and so significant variation exists in the above practical characteristics and performance of both types of microscopes can be enhanced in various ways.Long Answer:An electron microscope uses an electron beam to illuminate a specimen and produce the image.An optical or light microscope uses a light beam to illuminate a specimen and produce the image.A microscope of either type is characterized by its magnification and resolving power. The magnification depends on the lensing system and can be increased to any degree, but the maximum useful magnification is limited by the resolving power.The resolving power of a microscope can not be better than the limits placed on it by the size of the wavelength of the illuminating beam. The smaller the wavelength, the smaller the structures that can be resolved in them image.Visible wavelengths of light are a few hundred nanometers. An electron microscope operates with electrons accelerated to a few hundred thousand electron volts of energy and with a wavelength in the range of few hundredths of an Angstrom.An electron microscope has a theoretical resolving power that is much greater than a light microscope and can reveal smaller structures because the electrons used have wavelengths (few hundredths of Angstroms) almost 100,000 times shorter than visible light (few hundred nanometers).An optimized electron microscope can achieve a practical resolution of a few Angstroms and a useful magnifications in the millions of times.A good light microscope can resolve structures smaller than a micron but is limited to about a few hundred nanometers resolution. The useful magnification of a light microscope is not much more than a thousand times.The electron microscope uses electrostatic and electromagnetic fields to act as lenses to control and focus the electron beam and to form an image. An optical or light microscope employs glass lenses.
Which reaction of the Krebs cycle is carried out at the electron transport chain?
Succinate to fumarate
What is the function of oxygen in aerobic repsiration?
Oxygen serves as an electron acceptor. When food is completely metabolised in the organism, it is decomposed to electrons, protons and CO2. The electrons are carried by NADH to mitochondria, to electron-transport chain. At the end of the electron transport chain, oxygen receives electrons, thus providing for maximal yield of energy carried by those electrons (in the electron-transport chain, they are used for pumping protons across the mitochondrial membrane, thus proton gradient which empowers ATPase, is maintained). At last, the ATPase enzyme produces ATP, the usable form of energy.
What particle or particles carry virtually all the mass (weight) of any atom?
Virtually all of the mass of an atom is carried by the proton and the neutron. The electron has very, very little mass relative to these two particles.
How does a neutron become positively charged?
A neutron has a neutral charge. The atom itself consists of protons neutrons and electrons. Neutrons do not serve much purpose except holding the protons in the nucleus and making different isotopes. An atom can become positively charged if it looses an electron which originally carried a negative charge. If that atom were to gain an electron it would become negatively charged.
How are electron microscopes different from light microscopes?
An electron microscope can produce greater magnification, and thereby make smaller objects visible, than a light microscope can.Short Answer:Light microscopes can typically resolve structures to a fraction of a micron compared to electron microscopes which in practice achieve resolutions of a few nanometers. Practically, electron microscope can have almost a thousand times greater resolution than an optical microscope.The useful magnification of an electron microscope is also in the range of a thousand times greater than an optical microscope.The actual performance of any microscope depends on its design and lensing system and so significant variation exists in the above practical characteristics and performance of both types of microscopes can be enhanced in various ways.Long Answer:An electron microscope uses an electron beam to illuminate a specimen and produce the image.An optical or light microscope uses a light beam to illuminate a specimen and produce the image.A microscope of either type is characterized by its magnification and resolving power. The magnification depends on the lensing system and can be increased to any degree, but the maximum useful magnification is limited by the resolving power.The resolving power of a microscope can not be better than the limits placed on it by the size of the wavelength of the illuminating beam. The smaller the wavelength, the smaller the structures that can be resolved in them image.Visible wavelengths of light are a few hundred nanometers. An electron microscope operates with electrons accelerated to a few hundred thousand electron volts of energy and with a wavelength in the range of few hundredths of an Angstrom.An electron microscope has a theoretical resolving power that is much greater than a light microscope and can reveal smaller structures because the electrons used have wavelengths (few hundredths of Angstroms) almost 100,000 times shorter than visible light (few hundred nanometers).An optimized electron microscope can achieve a practical resolution of a few Angstroms and a useful magnifications in the millions of times.A good light microscope can resolve structures smaller than a micron but is limited to about a few hundred nanometers resolution. The useful magnification of a light microscope is not much more than a thousand times.The electron microscope uses electrostatic and electromagnetic fields to act as lenses to control and focus the electron beam and to form an image. An optical or light microscope employs glass lenses.
Part of a microscope that should be used when carried?
The Microscope should be carried under the base,( the bottom) of the microscope, and by the 'neck' of the microscope.hope that helps yaits acctually arm
If you carry a microscope from one part of the room to another by what two parts should it be carried?
The Microscope should be carried under the base,( the bottom) of the microscope, and by the 'neck' of the microscope. The neck is actually called the arm if you want the accurate term for it. So, yes, it should be carried by the base and the arm, or 'neck', of the microscope. xD
Part of the microscope that should be used when it is carried?
arm
Part of microscope that should be used when carried?
arm
Why should microscope be carried properly?
so you do not break it.
How should a micrsoscope be carried?
It should be carried with two hands. One hand on the base and the other on the arm of the microscope.
What parts of a microscope should be held when carried?
the base and the neck thingy.
What is the part of a microscope that should be used when it is carried?
there are two parts to answer your question. firstly, the arm of the microscope, and then lift up the microscope and place your hand under the microscope and grab the base. in short there is the arm and the base.
What electron carried the current in a metal conductor?
The valance electrons.
The electrons from glucose are carried to the electron transport system by which of the following?
NAD+
Millikan's oil drop experiment helped determine the mass of an electron by allowing scientists to measure which of these?
the charge carried by an electron A+
