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Ugo [173]
3 years ago
12

1) When biologists wish to study the internal ultrastructure of cells, they can achieve the finest resolution by using A) a phas

e-contrast light microscope. B) a scanning electron microscope. C) a transmission electronic microscope. Dna confocal fluorescence microscope. E) a super-resolution fluorescence microscope.
Biology
1 answer:
mestny [16]3 years ago
8 0

Answer:

C) a transmission electronic microscope

Explanation:

The transmission electron microscope is a high quality instrument to study internal ultrastructure of cells. It uses high energy beam of electrons instead of light for the imaging of the objects. As the wavelength of electrons is less as compared to the light which gives very high resolution of the images. High resolution can be used to analyze ultrastructure of cells.  Thus, the finest details of internal structure of cells can be studied.

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Phenylketonuria (PKU) is a recessive human disorder in which an individual cannot appropriately metabolize the amino acid phenyl
lutik1710 [3]

Answer

b. Regulate the diet of the affected persons to severely limit the uptake of the amino acid.

Explanation:

<u>This is the effective way of  managing PKU, if diet is not regulated, the blood plasma  Phenylketonuria levels continue to build up  from usual protein consumption. This leads to toxicity of the brain  and brain  dysfunctions. Nausea constipation, fatigues, health headaches are some of the results of the build up</u>.

Therefore to reduce the blood build up of phenylalanine and thus PKU;  Special diet  formulas rich in essential amino acids, and other needed nutrients which may be absent  in phenylalanine low diet  should be  adopted. Amino acids substitutes notably Tyrosine which  is lacking  from  failure of  phenyalanine breakdown in  phenylketouria is heavily  supplemented. Tyrosine is   important  in brain function for alertness, focus,nervous communication.

The  adoption of protein substitutes diet or regulated amino acid diet  is very important because , all the needed amino acid are available , thus protein catabolisms  which may  trigger phenylalanine build up  from muscles and liver storage withdrawal   is prevented thus  stabilizing its blood concentration.

8 0
3 years ago
Eukaryotic cells and prokaryotic cells have some parts in common. Which of the following pairs of parts would you find in both t
Juli2301 [7.4K]

Answer:

cell membrane and cytoplasm

Explanation:

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8 0
2 years ago
.They are usually found in air * True False
murzikaleks [220]

Answer:

true

Explanation:

I hope it helps

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3 0
2 years ago
Read 2 more answers
Make a statement relating hydrogen concentration to the acidity and the basic its of solutions
Vlad1618 [11]
More hydrogen ions means more acidic, more hydroxide ions means more basic
8 0
3 years ago
Which branch of chemistry studies the compositions if substances? the environmental impact of chemicals?
Makovka662 [10]

Answer;

-Analytical chemistry - composition.

Environmental - impact of chemicals

Explanation;

-Analytical chemistry involves the qualitative and quantitative determination of the chemical components of substances. In qualitative analysis all the atoms and molecules present are identified, with particular attention to trace elements. In quantitative analysis the exact weight of each constituent is obtained as well.

Environmental chemistry is the study of the chemical and biochemical phenomena that occur in the environment.It relies heavily on analytical chemistry and includes atmospheric, aquatic, and soil chemistry.

3 0
3 years ago
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