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Which structure focuses the light on the specimen?

Condenser Lens

What controls the amount of light passing through the stage?

Iris Diaphragm

What structure does light pass through after passing through the specimen in a compound light microscope?

objective: ​the first lens light passes through after the specimen. The obective collects the light from the specimen and focusses it to a point inside the body tube. eyepiece: ​the lens light passes through before getting to your eye. The eyepiece magnifies the image formed by the objective so you can see your sample.

What are the advantage and disadvantage of viewing a specimen under HPO?

The advantage of using an objective with higher magnification is an increase in detail can be viewed. The disadvantage of viewing at a higher magnification is that less of the slide can be viewed.

What are the advantages of viewing specimen under HPO?

2 The Advantage Provided by a High-power Objective Lens The advantage of a high power objective lens is that it provides a higher degree of magnification, which allows you to “zoom” in closer to the object being studied and see more detail. However, a lower power lens will provide a wider field of vision.

How important is microscope in studying specimen?

Microscopes help the scientists to study the microorganisms, the cells, the crystalline structures, and the molecular structures, They are one of the most important diagnostic tools when the doctors examine the tissue samples.

How much are the onion cells magnified?

The nucleus of an onion epidermal cell, 1000X magnification.

What magnification do you need to see onion cells?

Place the slide under 40x magnifying lens and observe the onion cells.

Are Onions made of one or many cells?

An onion is a multicellular (consisting of many cells) plant organism.As in all plant cells, the cell of an onion peel consists of a cell wall, cell membrane, cytoplasm, nucleus and a large vacuole. It is surrounded by cytoplasm.