1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
katen-ka-za [31]
3 years ago
5

Compare the structure and function of various types of microscopes: dissecting, compound light, transmission electron, and scann

ing electron microscopes.
Biology
1 answer:
lakkis [162]3 years ago
5 0

Answer and explanation;

Dissecting Microscope

The dissecting microscope is a light microscope that uses low magnification.  

Magnifies up to 40x.

The dissecting microscope is used to view larger organisms, organs, tissues, and small objects that can be seen with the naked eye but need more magnification to view details.

Compound Light Microscope

The most commonly used.  Magnifies from 40x up to 1,000x.

Specimens can be dead or alive.

The compound light microscope can be used with a dye on the slide to view tissue samples, blood, microorganisms in pond water, microscopic cells.  

The microscope allows light to pass through a specimen and uses two lenses to form an image.

Electron Microscope

-It is a microscope that uses a beam of electrons instead of light to magnify objects up to 500,000 times actual size. Electron microscopes have a much higher resolving power (higher clarity) than light microscopes because of the use of electrons instead of light.

Electron microscopes allow scientists to view structures within a cell. Electron microscopes can only view dead specimens.

Two types of electron microscopes:

1. Scanning Electron Microscope (SEM)

2. Transmission Electron Microscope (TEM)

Scanning Electron Microscope (SEM)

Useful for studying details of a specimen's surface.  Image is in 3-D.  

-An electron beam passes over the specimen's surface and displaces electrons, which are then focused on a screen to form an image. Uses a conductive material (gold metal) on the specimen.

Transmission Electron Microscope (TEM)

Mainly used for studying internal structures of cells.

Image created is 2-D.

Electromagnets magnify the image by passing a beam of electrons through a thin specimen.


You might be interested in
Which of these is not one of Earth's layers?<br> A.core b.mantle c.crust d.epicenter
Readme [11.4K]

Answer:

epicentre is the odd one out

Explanation:

it is not part of the earths layers

3 0
3 years ago
I need the correct answer, fast!! i chose "A" but im sure im wrong​
Wittaler [7]

Answer:

Explanation:

I think itś B...

8 0
4 years ago
Read 2 more answers
How long ago did speciation occur between tarsier and the ancestor of all the anthropoids?
inysia [295]
A tarsier, although a primate, is not an anthropoid. Examples of anthropoids are humans, orangutans, and gibbons. The speciation that happened between the small primate and the anthropoids was 65 million years ago. It was during that time that the common ancestors of all primates were still alive.
6 0
4 years ago
After the gram staining procedure, you realized you went too fast and have forgetten to apply the 95% ehtanol. What might be the
LekaFEV [45]

Answer:

In gram staining, 95% ethanol is used to destain the gram-negative bacteria but gram-positive bacteria do not get destain because peptidoglycan layer in gram-positive cell wall does not allow crystal violet- iodine complex to come out of the cell wall.

Gram-negative bacteria do not have peptidoglycan cell wall and so crystal violet comes out of the cell wall by using 95% ethanol because ethanol dissolves the lipopolysaccharide membrane of gram-negative bacteria and allow the dye to leak out.

Therefore if I forgot to apply 95% ethanol than crystal violet dye will not come out of the lipopolysaccharide cell wall of gram-negative bacteria and it will appear violet under the microscope.

4 0
4 years ago
Place the following structures in order from superficial to deep brain
bogdanovich [222]
<h3><u>Answer:</u></h3>

<u>The correct order for the structure in order from superficial to deep brain are listed below:</u>

  • Neocortex
  • Deep cortical (compact) bone
  • Trabecular (spongy) bone
  • CSF in the subarachnoid space
  • Integumentary system
  • Superficial cortical (compact) bone
  • Arachnoid matter
  • Meningeal layer of Dura matter
  • Periosteal layer of Dura matter
  • Pia matter
<h3><u>Explanation:</u></h3>
  • The spinal cord and brain are enveloped by three membranes which are known as meninges where, cranial meninges specially covers the brain.
  • Starting from the superficial to deep, there are three meninges named dura matter, arachnoid matter, and pia matter.
  • The important function of these meninges is to protect the substances of the spinal cord and brain.
6 0
4 years ago
Other questions:
  • A primary healthcare provider calls the intensive care unit and orders 10 mg of morphine every 4 hours for a patient's pain. wha
    15·1 answer
  • Suppose each trial equals 1,000 years. what is the half-life of virtualium?
    5·1 answer
  • A flexible covering that surrounds a cell
    6·1 answer
  • Aspirin and other nonsteroidal anti-inflammatory drugs (NSAID)inhibit inflammation by inhibiting an enzyme in the prostaglandin
    14·1 answer
  • in garden peas purple flowers are dominant to white flowers and tall plants are dominant to short plants if a purple tall plant
    9·1 answer
  • The cycle of seasons on the Earth is caused by the tilt of the Earth on its axis toward and away from the Sun. T or F
    7·2 answers
  • Energy that is produced by the surge of ocean waters during the rise and fall of tides; a type oof renewable energy.
    14·1 answer
  • Leaves have the capability to "breathe” through tiny pores in the
    7·1 answer
  • How are latitude and altitude similar and diffrent
    15·1 answer
  • Energy cannot be produced by fungi and heterotrophic organisms
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!