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individual cells are practically transparent, that is, light will pass directly through them and when viewed under a normal light microscope, almost nothing will have enough contrast for you to descern the different structures. Staining gives colour to the sample, increasing contrast between the cells and the surroundings, hence making it easier for you to observe them under the microscope. Usually stains do not simply give colour to the cell in general but bind to specific structures within the cell, making it easier to view specific organelles. However, staining is not required for all types of microscopy techniques. Some microscopy techniques required a completely different method of sample preparation, such as in electron microscopy.
Wiki User
∙ 15y ago
Wiki User
∙ 16y agoA lot of tissue is the same colour and density: have you ever look at glass under water, it is much the same thing. Staining things makes different things take on colour and they can be seen much more clearly. I believe the first medical staining was done by Doctor Erhlich in working with the tuberculosis bacterium.
Wiki User
∙ 9y agoStains are incredibly useful for viewing cells due to their inherent transparency because of their size. The coloring contrasts with the light in the background, allowing the human eye to perceive the cells more clearly.
Wiki User
∙ 11y agoStaining adds contrast to cell structure and allows us to distinguish to that structure.
Wiki User
∙ 12y agoSome structures and cells are not visible without staining. Staining can also help to identify certain structures (as some structures will be more strongly stained than others).
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How can cell culture be useful to biologists?
cell cultures help other cells reproduce so biologists can study them more
Why do biologists use dividing cells to determine the number of chromosomes in an organism?
Biologists use dividing cells to determine the number of chromosomes in an organism because when cells go through mitosis (the process of dividing) the chromosomes become much more visible.
Why do molecular biologists use yeast as opposed to bacteria for expressing genes of interest?
molecular biologists can avoid eukaryotic-prokaryotic incompatibility by using eukaryotic cells such as yeasts, rather than bacteria, as hosts for cloning and/or expressing eukaryotic genes of interest. source: Campbell Biology 7th edition
What kind of microscope do biologists use?
light microscope
Hhow do cells use enzymes?
need? it's all relative. I'm sure that the very first cells lacked all enzymes.Your cells need them to keep up with the competition.
In order to study the internal ultrastructure of cells what should biologists use?
Transmission Electron Microscopy
When biologists wish to study the internal ultrastructure of cells what kind of microscope would they use?
a transmission electronic microscope.
How can cell culture be useful to biologists?
cell cultures help other cells reproduce so biologists can study them more
Why do biologists use dividing cells to determine the number of chromosomes in an organism?
Biologists use dividing cells to determine the number of chromosomes in an organism because when cells go through mitosis (the process of dividing) the chromosomes become much more visible.
Why do biologist classify?
Biologists use classification to organize living things into groups so that the organisms are easier to study. :) Hope this helps
Biologists who employed the microscope in their work?
Anton van Leeuwenhoek invented microscopy, and made the first modern microscopes. If you are trying to ask for the names of present-day biologists who employ the microscope in their work, the answer is "all of them." Microscopy is so important to biology that all biologists have microscopes and use them frequently.
Why do people use stains when studying cells?
I don`t know. need your help
What are microscopes used?
Microscopes are used to see things too small for the naked eye. They are used to look at cells from plants and animals and many other things that our eyes can't see. Geologists use them to study rock samples. Biologists use them to examine cells, bacteria, and the structures of bones and tissues. Doctors and forensic pathologists use them to study the changes in tissues that can cause illness or death. Manufacturing chemists use microscopes to study how chemicals interact. Engineers use microscopes, electron microscopes and x-rays to study the form and structure of materials, and how they react to physical and chemical changes.
When biologists wish to study the internal structure of cells they use?
a transmission electronic microscope
What tool your use to study the cells in celery?
You use a tool
What is a biological field?
A biological field is for biologists, they use nature as a laboratory and combine the principles of biology, the physical sciences and mathematics to study the diversity and interactions of plants, animals and microorganisms in their natural environments. Thus, field biologists include ecologists, zoologists, botanists, population biologists, taxonomists, physiologists, wildlife and fisheries biologists, microbiologists and others.
Why genomics be important for evolution research?
Biologists can use computer databases to study molecules of evolution and the patterns similarities and differences in biological data
