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    The difference between the simple microscope and the compound…

  1.  

 

The difference between the simple microscope and the compound microscope is in:

 

the light  

 

 

 

 

the objetives 

 

 

 

 

the number of eyepieces

 

 

 

 

none

 

 

 

 

 

 

 

 

 

 

The plant cells differ of the animal cells because:

 

 

 

 

 

plant cells have nucleus, animal cells have nucleoid

 

 

 

 

plant cells have one big vacuole, animal cells have not vacuoles

 

 

 

 

Animal cells have strong cell wall, plant cells have cell membrane only

 

 

 

 

Plant cells have chloroplasts, animal cells have not chloroplasts

 

 

 

 

 

 

 

 

 

 

The first step when using an optic microscope is:

 

 

 

 

 

Adjust the focus of the microscope

 

 

 

 

Rotate the 4X objective into position using the revolving nosepiece ring.

 

 

 

 

Clean ocular and objective lenses with paper moistened in distilled water

 

 

 

 

Clean the objectives and ocular lenses with Kimwipes

 

 

 

 

 

 

 

 

 

 

Select the right statement from from the sentences below :

The parts of a simple microscope are:

 

 

 

 

 

Eyepiece, Objectives, Specimen, Body, Light, Base 

 

 

 

 

Eyepiece, Objectives , Specimen Stage , Aperture Diaphragm, Body, Light

 

 

 

 

Objectives, Body, Light, Base 

 

 

 

 

b and c

 

 

 

 

 

 

 

 

 

 

Dark field microscope:

 

 

 

 

 

have a different ocular lens

 

 

 

 

have a bigger diaphragm

 

 

 

 

have a special condenser

 

 

 

 

uses UV light to observe specimens

 

 

 

 

 

 

 

 

 

 

Cell Colonies are:

 

 

 

 

 

groups of different cells assorted without sharing functions

 

 

 

 

groups of cells with the same functions and characteristics

 

 

 

 

groups of cells with the same structure or species

 

 

 

 

groups of cells with different functions

 

 

 

 

 

 

 

 

 

 

In a microscope when magnification increases the resolution decreases

 

 

 

 

 

  1. TTrue

 

  1. FFalse

 

 

 

 

 

 

 

Fluorescence Microscopy is very important for the recognition of only a few specific microorganisms, per example treponema pallidum

 

 

 

 

 

  1. TTrue

 

  1. FFalse

 

 

 

 

 

 

 

The following elements are common in compound light microscope and electron microscope:

 

 

 

 

 

Electron gun, ocular lens, condenser lenses, objective lens

 

 

 

 

Electron gun, binocular lens, light source, condenser lens

 

 

 

 

Condenser lens, binocular lens, objective lens, specimen.

 

 

 

 

Light source, screen, condenser lens, binocular lens, specimen

 

 

 

 

 

 

 

 

 

 

Placing and removing a slide from the stage:

 

 

 

 

 

can be done with any objective lens in place

 

 

 

 

can be done only when the lens is not touching the slide to prevent damage to the equipment and/or the slide.

 

 

 

 

does not cause any damage to the lens

 

 

 

 

a and c are true

 

 

 

 

 

 

 

 

 

 

The Augmentation power in Transmission Electron Microscope is between 10,000X to 100,000X.

 

 

 

 

 

  1. TTrue

 

  1. FFalse

 

 

 

 

 

 

 

Without oil immersion visibility is reduced because of peripheral light passes from the slide into the air

 

 

 

 

 

  1. TTrue

 

  1. FFalse

 

 

 

 

 

 

 

From the following sentences, chose the correct phrase to complete the idea:

Anton Von Leewenhoek was the scientific inventor of a microscope with:

 

 

 

 

 

2 lens. Resolutions: 1 um. Augmentacion : 300 x

 

 

 

 

1 lens. Resolutions: 1 um. Augmentacion : 300 x

 

 

 

 

1 lens. Resolution : 300 um Augmentacion : 1 X

 

 

 

 

D- none

 

 

 

 

 

 

 

 

 

 

Resolution is the ability of the lenses to distinguish two points very close to each  other

 

 

 

 

 

  1. TTrue

 

  1. FFalse

 

 

 

 

 

 

 

When using a stereoscopic microscope:

 

 

 

 

 

the use of a coverslip is mandatory

 

 

 

 

specimen can be seen without the use of a coverslip

 

 

 

 

there is no change in the visual characteristics of the specimen when the magnification is modified

 

 

 

 

The light source is always under the specimen.

 

 

 

 

 

 

 

 

 

 

The function of the mitochondria is:

 

 

 

 

 

Protein synthesis

 

 

 

 

convert and produce energy from one form to another.

 

 

 

 

Photosynthesis in animal cells

 

 

 

 

Respiration in plant cells

 

 

 

 

 

 

 

 

 

 

A microscope with a resolving power of 0.4 nm can distinguish between two points at least 0.8 nm apart

 

 

 

 

 

  1. TTrue

 

  1. FFalse

 

 

 

 

 

 

 

The prokaryotic cell differs of the eukaryotic cell because:

 

 

 

 

 

prokaryotic cell have an organized chromosome and nuclear membrane

 

 

 

 

eukaryotic cell has DNA and mRNA surrounded by nuclear membrane and prokaryotic cells has not

   nuclear membrane

 

 

 

 

eukaryotic cell has a strong cell wall and cell membrane, and prokaryotic cells have only cell

  membrane

 

 

 

 

prokaryotic cell has Golgi apparatus and eukaryotic cells have not Golgi complex

 

 

 

 

 

 

 

 

 

 

In order to increase the resolution in optic microscopy, we must:

 

 

 

 

 

increase magnification

 

 

 

 

increase the amount of light opening the iris diaphragm

 

 

 

 

use especial dyes to increase contrast

 

 

 

 

none of the above

 

 

 

 

 

 

 

 

 

 

When preparing a wet mount to be seen at the light microscope you use a cover slide in order to:

 

 

 

 

 

flatten the preparation

 

 

 

 

protect the objective lenses

 

 

 

 

keep the preparation from drying out

 

 

 

 

all of the above

 

 

 

 

 

 

 

 

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