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gogolik [260]
1 year ago
6

Explain why the structure of mitochondria and ribosomes was not well understood before the development of the electron microscop

e.
Biology
1 answer:
77julia77 [94]1 year ago
8 0

Both mitochondria and ribosome are so tiny structure, it can not be seen under light microscope. It needs more magnification to study the detail structure, hence electron microscope is best to use.

<h3>What is ribosome ?</h3>

Ribosomes are small membrane less organelles and are the sites of protein synthesis.

It is present in are found in both eukaryotic and prokaryotic cells.

Ribosomes can either be present alone or in groups in cytoplasm while some ribosomes are attached to the endoplasmic reticulum  called as rough endoplasmic reticulum.

These are composed of ribosomal protein and RNA, have two subunit larger and smaller subunit.

Learn more about ribosome, here:

brainly.com/question/241631

#SPJ1

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50 points! pls help!
iren [92.7K]

Answer:

1. Latitude. Kuala Lumpur is located in the equatorial zone, near the equator, so it receives a lot of sun for the  entire year, and this explains its warm climate.

2. The main reason for this difference is the altitude: while Minsk is located at 280 meters over the sea level, Banff is located at approximately 1400 meters over the sea level. As the altitude is higher, the average temperature is lower.

3. Jakarta: in fact, it is located at a similar altitude of Kuala Lumpur (just in the opposite hemisphere), in the equatorial zone, while Baltimore is located much more north, so in a colder region.

4. Because they are located at approximately same latitude (just in the opposite hemisphere), so they are more or less same distance from the equator, and they receive more or less same amount of sun light, therefore they have similar climate.

4 0
3 years ago
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Jordan uses a high power objective to observe a specimen under a light microscope. What should he use to focus
11Alexandr11 [23.1K]
Since Jordan needs to use the high power objective in order to view the specimen under the light microscope. He should use the ocular lens in order to view the high power objective which is placed in the objective lenses. So he needs to use the ocular lens for viewing and the objective lens to magnify and see the specimen clearly on the stage.
4 0
4 years ago
Which type of epithelium is composed of multiple layers, including an apical layer containing tall, slender cells?
Mademuasel [1]

The question is incomplete as it does not have the options which are:

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Answer:

Stratified columnar

Explanation:

Epithelial tissue is the tissue formed by the cells which form a layer of cell and lines the lumen of the organ and also covers the organs. The epithelial tissue can be classified based on the number of layer and shape of the cell.

In the given question, the shape of the cell is slender and are tall therefore are called columnar. The cells form more than one layer or multiple layers therefore form stratified layers.

Therefore,  the epithelial tissue formed by these slender shaped multiple layers is known as the stratified columnar layer. The stratified columnar is present in the respiratory tract and the digestive tract.

Thus,  Stratified columnar is the correct answer.

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Answer:

I believe it's the <em>collecting</em><em> </em><em>duct</em>

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