How to understand the diversity and unity of cells?

The diversity of cells is reflected in the differentiation of different structures of cells. It is mainly manifested in many aspects such as cell membrane, nucleus and cytoplasm. This is a microscopic view.

In the macroscopic aspect, it is reflected in both prokaryotic and eukaryotic cells. Or more detailed animal plant cell structure is mostly similar, such as plant multi-cell wall. chloroplasts, etc., while animals do not.

There is one important difference between eukaryotic and prokaryotic cells. But in terms of uniformity, there are similarities in each classification, such as the Golgi apparatus. Inner to the reticulum, cytoplasm, etc.

Root causes and direct causes of cell diversity:

1. The direct cause of cell diversity: the molecular structure of the proteins that make up the cell is different.

2. The root cause of cell diversity: the DNA contained in the cells of different individuals is different; The formation of different types of cells in the same individual is the result of selective expression of genes.

The cell is an organism, and all animals and plants develop from the cell, and are composed of cells and cell products; The cell is a relatively independent unit that has both its own life and the life of the whole composed of other cells; New cells can be produced from old cells.

Cell diversity is characterized by differences in cell morphology, size, type, structure, etc. The levels of living systems in nature include: cells, tissues, organs, systems, individuals, populations, communities, ecosystems, and biospheres.

Diversity: Cells vary in morphology, size, species, structure, etc.

Unity: 1. Chemical composition; The types of elements and compounds that make up the cell are the same in history.

2. Structure: all have cell membranes.

Cytoplasm, ribosomes.

3. Genetic material: DNA is used as the genetic material, and the genetic codon is used throughout the year.

4. Energy substance: ATP is used as a direct energy substance.

Cell theory mainly explains the diversity of cells or the unity of the biological world, a topic that must not be avoided in biology is the cell, before the Middle Ages due to the underdevelopment of medicine, people did not have a very scientific study of the body, so at that time there were many quacks through superstitious feudal methods to treat patients, the results can be imagined. With the development of science and technology, medicine has also entered a new field, in the middle of the 17th century, the British scientist Robert discovered the cell, this discovery brought human cognition of the human body into a new realm, people also have a new understanding of cells.

Cells are the basic structure of living organisms, which make up every tissue of our body, and the life activities of viruses can only be carried out in cells, so scientists around the world have studied cells. It became a fashion at the time, and then developed into a doctrine - the cell theory.

Some people believe that the cell theory mainly explains the diversity of cells, because in the investigation and research, it is found that the cells of each human body are different to a certain extent, and because of different tissues, different organs and other cells that constitute biological life are also different, which also shows to a large extent that cells in the biological world are as diverse as organisms; The other theory is that the cell theory mainly explains the unity of the biological world, and that any living object in the whole world is composed of cells, and this result corroborates each other with the definition of cells.

In my personal opinion, I am more inclined to the latter statement, as a constituent molecule of our living body, no matter what kind of life form is inseparable from the composition of cells, which coincides with the natural unity of the biological world, whether it is the food chain or the natural world is a circular process from the overall point of view, and the normal state of survival of the fittest is actually the organic operation of the natural world as a whole.

This situation mainly shows the diversity of cells, there are many kinds of forms, and it is also because of the continuous combination that finally forms an individual.

It is unity, because cells are organisms in nature, and there are many animals and plants that are formed by the development and transformation of single cells, and the basic structure is exactly the same.

The main thing is uniformity. Because cells are organisms, all animals and plants develop from cells.

It mainly explains the diversity of cells, because there are many cells, and each cell is different, so the diversity of cells is very important.

The unity of the cell is reflected in the following three aspects:

1.A cell is an organism, and all animals and plants have cells that develop and are composed of cells and cell products.

2.A cell is a relatively independent unit that has both its own life and the life of the whole that is made up of other cells.

3.New cells can arise from old cells.

Diversity and unity of cells.

Diversity and unity of cells.

Diversity: Cells vary in morphology, size, species, structure, etc.

Unity: 1. Chemical composition; The types of elements and compounds that make up cells are basically the same.

2) Structure: both have cell membrane and cytoplasm.

Ribosomal genetic material.

Both use DNA as the genetic material, and.

Genetic code. Sub-generic.

4. Energy substance: ATP is used as a direct energy substance.

The diversity of cells is mainly manifested in the following aspects: the composition of cells in different organisms is different; Cells vary from one organism to another;

Unity is manifested in both structural and material aspects: structurally, cells have cell membranes, cytoplasm (ribosomes), and substances have genetic material DNA.

Diversity and unity of cells.