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Semenov [28]
3 years ago
14

What cellular structures can be observed with the aid of light microscopy and electron microscopy?​

Biology
1 answer:
Serjik [45]3 years ago
8 0

With a light microscope one can view the nucleus and endoplasmic reticulum, large vacuoles etc

The resolution of a light microscope is dependent on the wavelength of light that is the main beam of illumination. Light has approximately 0.4 um (UV)- 0.7um (Infrared) wavelength. Organelles smaller than about 0.5 um will be difficult to discern with a light microscope.

With an electron microscope one can view, in addition, even the ribosomes and mitochondria, chromosomes, tubules etc.

An electron microscope can discern very minute details of a cell. This is because its resolution is dependent on the very small wavelength of a beam of electrons which is approximately 0.002 um (about 10,000 times powerful than a light microscope)

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1. Introduction – this is where you explain to your audience why you are making this presentation/video/booklet. You will explai
Mrrafil [7]

Answer:

1.The processes of erosion, transportation and deposition occur as a result of differing wave and current energy,Where marine energy is high, disintegration, expulsion and transportation is bound to occur.

2.Erosion refers to the breaking down of the land by the force of waves. Transportation is the work of waves and tides in transferring this broken material somewhere else and deposition refers to the process by which waves and tides lose energy, cease to transport and release eroded material.

3.Erosional landforms include V-shaped valleys, interlocking spurs, waterfalls and gorges. Meanders and oxbow lakes are formed from erosion and deposition. Depositional landforms include floodplains.

4.The ‘blue economy’—a term that has emerged in the past decade—attempts to embrace the opportunities associated with the ocean, whilst recognising, accounting for and addressing the threats posed by such an economy. It is essentially the ocean equivalent of the ‘green economy’—a vision for a decarbonised, regenerative and more equitable economic system.

The ‘blue economy’ gained prominence at the 2012 UN Convention on Sustainable Development (UNCSD), or Rio+20 conference, when small island developing states began emphasising the importance of the ocean and marine economy in response to land-focused calls for a ‘green economy’

5.Coastlines are being eroded by waves and the weather.

Coastlines need to be managed because they are often used by humans for purposes such as housing.

To protect the coast from erosion, we can use hard engineering strategies (building man-made structures such as sea walls) and soft engineering strategies (using natural processes such as beach nourishment).

6.A conclusion is, in some ways, like your introduction. You restate your thesis and summarize your main points of evidence for the reader. You can usually do this in one paragraph. In the following example, the thesis statement is in bold. Notice that it is written in 2 sentences.

Explanation:

hope it help I think I got it so far

at the number 4 you can search this link to study that question more

https://webapps.itc.utwente.nl/libraryw ww/papers_2010/msc/upm/priyanto.pd f

(〃^▽^〃)

5 0
2 years ago
11. The only freely moveable bone in the skull is the
irinina [24]

Answer:

mandible

Explanation:

The only bone in your skull that forms freely movable joints is your mandible or jawbone.

8 0
1 year ago
The theory of endosymbiosis suggests that mitochondria evolved from small prokaryotes that once lived within larger host cells.
lianna [129]
Yes That is true and I’m not too sure what else you could get from it?
7 0
4 years ago
What are the two principal types of connective tissue in a muscle? collagen and myofibrils myofibrils and elastin myofibrils and
kirza4 [7]

The two principal types of connective tissue in a muscle are collagen and myofibrils. The entire muscle is wrapped in collagen to form a fascicle. Looking at one muscle fiber, you will see that almost the entire cross section of the muscle fiber is composed of long, cylindrical strands of proteins called myofibrils<span>. </span>

4 0
3 years ago
I wonder If anyone will answer this
VMariaS [17]
They are measures in degrees.
3 0
3 years ago
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