Question

Бактерии кокки,бацеллы,спираллы,фото

Answer 1

Ко́кки (от др.-греч. κόκκος — «зерно») — бактерии шаровидной формы. Различают абсолютно круглые и слегка вытянутые по форме бактерии.

После деления клетки образуют в зависимости от стадии деления структуры, которые являются типичными для определённых видов кокков. Различают:

Стрептококки: сложенные в форме цепочки (напр. энтерококки, пептострептококки)
Диплококки: сложенные парами (напр. пневмококки, Neisseria)
Тетракокки: сложенные вместе 4 клетки
Сарцины: сложенные вместе 8 и более клеток
Стафилококки: сложенные грудой клетки (напр. микрококки, пептококки)

Answer 2

Types of Bacteria

Bacteria are single-celled microorganisms that can be found in various shapes and forms. Some of the common types of bacteria include cocci (singular: coccus), bacilli (singular: bacillus), and spirilla (singular: spirillum).

- Cocci: Cocci are spherical or oval-shaped bacteria. They can occur in different arrangements, such as pairs (diplococci), chains (streptococci), or clusters (staphylococci).

- Bacilli: Bacilli are rod-shaped bacteria. They can be found individually or in chains. Some examples of bacilli include Escherichia coli (E. coli) and Bacillus anthracis, the causative agent of anthrax.

- Spirilla: Spirilla are spiral-shaped bacteria. They have a rigid helical structure and can move using flagella. One example of spirilla is the bacterium responsible for causing Lyme disease, Borrelia burgdorferi.

Bacterial Photosynthesis

Bacterial photosynthesis is a process by which certain bacteria use light energy to convert carbon dioxide and water into organic compounds. This process is similar to photosynthesis in plants but differs in the types of pigments involved.

- Purple Bacteria: Purple bacteria are a group of photosynthetic bacteria that contain pigments called bacteriochlorophylls. They use light energy to produce organic compounds and release oxygen as a byproduct. Purple bacteria are typically found in aquatic environments.

- Green Bacteria: Green bacteria, also known as green sulfur bacteria and green nonsulfur bacteria, are another group of photosynthetic bacteria. They use light energy to produce organic compounds but do not release oxygen as a byproduct. Green bacteria are commonly found in anaerobic environments such as freshwater and marine sediments.

- Cyanobacteria: Cyanobacteria, also known as blue-green algae, are a group of bacteria that can perform oxygenic photosynthesis. They contain pigments called chlorophylls and release oxygen as a byproduct. Cyanobacteria are found in various habitats, including freshwater, marine environments, and terrestrial ecosystems.

It's important to note that while bacteria can perform photosynthesis, not all bacteria are capable of this process. Bacterial photosynthesis is primarily observed in specific groups of bacteria that have adapted to utilize light energy for their metabolic needs.

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