Question

Чем бактерии принципиально отличаются от организмов других царств? помогите пожалуйста сегодня надо!!!))

Answer 1

У бактерий нет ядра. вместо него кольцевая ДНК

Answer 2

Bacterial Differences from Organisms in Other Kingdoms

Bacteria are single-celled microorganisms that belong to the kingdom Monera. They are fundamentally different from organisms in other kingdoms in several ways:

1. Cellular Structure: Bacteria have a simpler cellular structure compared to organisms in other kingdoms. They lack a nucleus and membrane-bound organelles. Instead, their genetic material is contained in a single circular chromosome located in the cytoplasm. Some bacteria may also have plasmids, which are small, circular pieces of DNA.

2. Reproduction: Bacteria reproduce asexually through a process called binary fission. In binary fission, the bacterial cell divides into two identical daughter cells. This process allows bacteria to multiply rapidly under favorable conditions.

3. Metabolism: Bacteria exhibit diverse metabolic capabilities. They can be classified into different groups based on their energy source and carbon source. For example, some bacteria are autotrophs, capable of synthesizing their own organic compounds using inorganic substances like carbon dioxide. Others are heterotrophs, relying on organic compounds from their environment for energy and carbon.

4. Genetic Diversity: Bacteria have a high degree of genetic diversity. They can undergo genetic recombination through processes like conjugation, transformation, and transduction. These mechanisms allow bacteria to exchange genetic material, leading to the acquisition of new traits and the development of antibiotic resistance.

5. Ecological Roles: Bacteria play crucial roles in various ecosystems. They are involved in nutrient cycling, decomposition, and symbiotic relationships with other organisms. Some bacteria are capable of nitrogen fixation, converting atmospheric nitrogen into a form usable by plants. Others can degrade complex organic compounds, contributing to the breakdown of dead organic matter.

It is important to note that while bacteria have distinct characteristics that set them apart from organisms in other kingdoms, there is also considerable diversity within the bacterial kingdom itself. Bacteria can vary in terms of their shape, size, metabolic capabilities, and ecological roles.

I hope this information helps! Let me know if you have any further questions.