kingdom monera - sistem klasifikasi 5 kingdom

Summary

This video explores the fascinating world of the Monera kingdom, focusing on bacteria and cyanobacteria (blue-green algae). Viewers learn that organisms in this kingdom are unicellular, prokaryotic, and reproduce by binary fission. The video highlights beneficial bacteria, like *E. coli* and *Rhizobium*, which aid in processes such as vitamin production and nitrogen fixation. It also covers harmful bacteria that cause diseases like tetanus, cholera, and tuberculosis. Additionally, cyanobacteria, such as *Spirulina*, are introduced for their role in photosynthesis and soil fertility. The video offers an informative and approachable look at these microscopic life forms.

Takeaways

• 😀 Monera is a kingdom of microscopic organisms, including bacteria and blue-green algae.
• 😀 Organisms in the Monera kingdom have prokaryotic cells, meaning they lack a membrane-bound nucleus.
• 😀 Bacteria in the Monera kingdom come in different shapes: cocci (round), bacilli (rod-shaped), and spirilla (spiral).
• 😀 Most bacteria reproduce through binary fission, where one cell divides into two.
• 😀 Escherichia coli, a beneficial bacteria found in the human gut, helps produce Vitamin K.
• 😀 Rhizobium spp. are beneficial bacteria that fix nitrogen in the soil, improving soil fertility.
• 😀 Some bacteria are harmful to humans, such as *Clostridium tetani* (tetanus) and *Vibrio cholerae* (cholera).
• 😀 Other harmful bacteria include *Mycobacterium leprae* (leprosy), *Salmonella typhi* (typhoid fever), and *Bacillus anthracis* (anthrax).
• 😀 Cyanobacteria, or blue-green algae, are photosynthetic and produce their own food through chlorophyll-based photosynthesis.
• 😀 *Spirulina*, a type of cyanobacteria, is known for its high protein content and ability to fix nitrogen, enhancing soil fertility.

Q & A

What is the size range of organisms in the Monera kingdom?

Organisms in the Monera kingdom are microscopic, typically ranging from 1 to 10 micrometers in size.

What type of microscope is needed to observe organisms in the Monera kingdom?

To observe organisms in the Monera kingdom, a microscope with a magnification of at least 1000 times is required.

What is a characteristic feature of cells in the Monera kingdom?

A key feature of cells in the Monera kingdom is that they lack a membrane-bound nucleus, making them prokaryotic.

What organisms are included in the Monera kingdom?

The Monera kingdom includes bacteria and blue-green algae (cyanobacteria).

How do bacteria in the Monera kingdom reproduce?

Bacteria in the Monera kingdom reproduce by binary fission, which is the process of a single cell dividing into two.

What are some examples of beneficial bacteria in the Monera kingdom?

Examples of beneficial bacteria include Escherichia coli in the human large intestine, which helps produce vitamin K, and Rhizobium sp., which helps bind nitrogen in the air.

What harmful bacteria are found in the Monera kingdom?

Harmful bacteria in the Monera kingdom include Clostridium tetani (causes tetanus), Vibrio cholerae (causes cholera), Mycobacterium leprae (causes leprosy), Salmonella typhi (causes typhoid fever), Mycobacterium tuberculosis (causes tuberculosis), and Bacillus anthracis (causes anthrax).

What is the role of Clostridium botulinum in food?

Clostridium botulinum is responsible for causing food to spoil and become toxic, leading to botulism.

What are cyanobacteria, and how do they make food?

Cyanobacteria, also known as blue-green algae, contain chlorophyll and are capable of making their own food through photosynthesis.

What is the significance of Spirulina in the Monera kingdom?

Spirulina is notable for its high protein content and its ability to enhance soil fertility by fixing nitrogen from the air.