The low power objective is useful for allowing you to focus your lens on the object that you wish to study without too much difficulty. Then it should be possible to simply switch to a higher power objective lens without having to do more than make a small adjustment to the fine focus knob. Another advantage of the lower power lenses is to allow scanning for something that may be of interest, without needing to examine each field in minute detail when the organism/organelle of interest is not present. When you see something of potential interest, you can then switch to a higher power lens.
As protozoa are rather large on the micro scale, one does not need oil immersion lenses or high power. analogy- one does not need extreme lens speed or shutter speeds to photograph large stationary objects such as Bridges or buildings! moving targets are another matter.
You are working on a workbook called symbolis, aren't you? I don't know.
what advantage does the low power objective have over oil immersion in viewing fungi
Fungi have large cells and are better viewed structurally under a low light, which also allows better depth of vision and can use lower light.
Live fungal cells can be observed for a long time.
beacause they gigady at the photoshoot
Transmission electron microscopy
beacause they gigady at the photoshoot
An objective sign is one that can be measured or observed by someone aside from the noticing party. This is because it is reliant on the object itself, not the subject viewing the sign.
To locate the exact site in the microscope field that you want to magnify.
If only half your viewing field is lit, twist objective lenses until they click into place.
Transmission electron microscopy
One advantage is that it increases the resolution and clarity of the image, this is very useful for viewing specimens that would otherwise be to small to see without the oil. However it can be very messy to apply the oil and can take time and be rather difficult to clean the slide and the microscope. Moreover the slide could become damaged if vertical movement is used a lot; this is because the work distance between lens and slide is very small.
When the objective lens you want to use is in the viewing area it will click in place. At times, trial and error will help. It will only take minute or two to get it correct.
Used for viewing larger specimens, often in containers.
beacause they gigady at the photoshoot
10x
40x
10x
40x
An objective sign is one that can be measured or observed by someone aside from the noticing party. This is because it is reliant on the object itself, not the subject viewing the sign.
50x
I can observe cell surface area such as cell wall or outer structure of cell.