The difference between the simple microscope and the compound…

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