Is there a lot of nucleus pores in the metabolic nucleus? Cells with vigorous protein synthesis and

Hello. The metabolism is vigorous, which means that there are more proteins for DNA transcription, translation and synthesis, and there are more mRNA generated by DNA transcription, and mRNA has to pass through nuclear pores, so there are many nuclear pores!

Protein synthesis requires DNA transcription and translation to synthesize, and vigorous protein synthesis indicates that DNA is transcribed more, mRNA is generated, and nucleolus is more.

The amount of mRNA stored in it is of course larger than the nucleolus volume! The manifestation of vigorous metabolism is vigorous enzyme synthesis, but there are both proteins and ribonucleotides in enzymes, so vigorous metabolism includes vigorous protein synthesis.

Illustrate an example of a cell that needs to secrete proteins (containing the endoplasmic reticulum and the Golgi apparatus.

more). For example, the mammary glands.

Cells secrete proteins compared to sweat gland cells, while the latter secrete inorganic salts.

then the former is vigorous.

Young cells are more synthesized than senescent cells, cells with high metabolic levels are more synthesized than cells with low metabolic intensity, and cancer cells are more synthesized than normal cells.

Hope mine is helpful to you.

Analysis: 1. The nuclear pore is the channel for some macromolecular substances in the cell to enter and exit. Cells with vigorous metabolism have many nuclear pores, which is conducive to the exchange of nucleus and substance substances.

2. The formation of nucleolus and ribosomal RNA. Protein synthesis is related to RNA, so cells with vigorous protein synthesis have large nucleoli volume.

Just figure out the functions of the nuclear pore and nucleolus.

The nuclear pore is the passage through which macromolecules enter and exit the nucleus, and importantly, it is the passage through which mRNA enters and exits the nucleus.

The nucleolus is the hail of RNA, which is an important component of ribosomes. Whereas, ribosomes are the site of protein synthesis.

The following is easy to understand. In cells with vigorous metabolism, the rate and amount of protein synthesis are relatively large. Then the transcription and translation process is more vigorous than that of Yuansong, and the production of mRNA and protein is relatively more.

Answer] :(1) The main functions of the nucleolus involve the biogenesis of ribosomes, including the synthesis and processing of RNA and the assembly of ribosomal subunits.

2) The number of ribosomes is related to the degree of protein synthesis. If the cells are growing, a typical mammalian cell needs to synthesize tens of thousands of ribosome-sized subunits per minute to ensure protein synthesis is as needed. And in the cultured starvation state of cells this number is only a few hundred.

Cells with vigorous protein synthesis and active growth, such as secretory cells and oocytes, can account for up to 25% of the total nuclear volume. Of course, the nucleoli in cells with vigorous protein synthesis are significantly larger.

The higher the ratio of free water to bound water, the more vigorous the metabolism of the cell, but the more free water content in the body than the bound water does not indicate that the cell metabolism is vigorous, wrong;

Mitochondria. It is the main place of aerobic respiration, which is the power workshop of life activities, and the large number of mitochondria can indicate that the cell (or organism) metabolism is vigorous, correct;

Nucleus. The nuclear pore is an important channel for the exchange of nucleus and cytoplasmic substances, and the number of nuclear pores in the nucleus is abnormal, which indicates that the cell (or Euceleria) metabolism is vigorous and correct.

Cell membrane. The functional complexity is related to the type and number of proteins on the cell membrane, and the protein content on the cell membrane can indicate that the cell (or organism) metabolism is vigorous and correct

Therefore, c

It should be smaller!

Because the size of the nucleolus is related to the vigor of the cell's metabolism, cells with vigorous protein synthesis and active growth, such as secretory cells and oocytes, have large nucleoli, while cells with low metabolism such as muscle cells.

Dormant plant cells.

Its nucleoli are small.

So after the aging of cells, the metabolism becomes weaker and the nucleoli become smaller!

I wish you good health and all the best!

a. Golgi apparatus.

It is ubiquitous in eukaryotic cells, but it is more developed in cells with secretory functions, a false;

b. Synthesis of nucleolus and a certain RNA (RRNA) spike group in the nucleus and ribosomes.

so that in cells where protein synthesis is flourishing, there are often larger and more nucleoli, b correct;

c. The metabolic intensity of different tissue cells and different parts of the same cell in the same animal body is not necessarily the same, and the energy required is not necessarily the same, so the mitochondria they contain.

The quantity may be different, c is correct;

d. RNA is present in ribosomes, and mitochondria and chloroplasts contain a small amount of DNA and RNA, and D is correct

Therefore, a

When metabolism is vigorous and protein synthesis is vigorous, ribosomal function is vigorous.

The nucleolus is involved in the assembly of ribosomes.

Nucleolar components include rRNA, RDNA, and ribonucleoproteins. The most important assembly element of the RNA ribosome.

Cells with vigorous metabolism synthesize more proteins and need to assemble ribosomes, so the nucleolus is relatively large.

Hope it helps

Free water and mitochondrial content are relatively high! Free water has two functions:1

It is a good solvent for various chemical reactions in cells, and metabolism is the biochemical reactions carried out in cells. Most of these reactions need to be carried out in solution. 2.

Free water plays a transport role in the cell. Metabolism needs more energy, need mitochondria for energy metabolism of cells to synthesize proteins and other cell products, DNA is to guide protein synthesis, go through the process of transcription, translation, expression, in which transcription is carried out in the nucleolus, the synthetic RNA single strand from the nuclear pore into the cytoplasm for translation, expression process, cell metabolism is vigorous, indicating that the cell is synthesizing a large number of proteins, need DNA transcription in the nucleus to generate a large amount of mRNA, mRNA enters the cytoplasm through nuclear pores for translation, so the number of nuclear pores is large; At the same time, the nucleolus plays an important role in the synthesis of RRNA, and RNA is an indispensable component of ribosomes, which are indispensable for protein synthesis. <>

"Cells have vigorous metabolism, and the volume of nucleolus in the nucleus increases" Simply put, this is because the nucleolus is mainly the site of RNA transcription, and it is generally believed that cells with vigorous metabolism need to synthesize more proteins, and the process of protein synthesis requires ribosomes, and ribosomes are composed of RNA and ribosomal proteins. Hence a large amount of rRNA is required to be transcribed, hence the nucleolus enlarges. "The respiration rate in the nucleus slows down, the volume of the nucleus increases, the nuclear membrane folds inward, the chromatin shrinks, and the staining deepens" mainly refers to the enlargement of the nucleus.

In common cellular senescence, programmed death, or apoptosis, the nucleoli are all smaller, and this is also the case with our own experimental data. But the structure of the nucleus itself also disintegrates. As a result, the nucleus becomes larger.