Prokaryotes: Bacteria in Action

The video discusses the dual nature of bacteria, highlighting both harmful and beneficial aspects. It begins with common bacterial infections and their treatment, then moves to serious diseases like tuberculosis and cholera. The video also emphasizes the positive roles of prokaryotes, such as decomposition and nutrient cycling, and explains nitrogen fixation, which aids plant growth.

What is a common cause of infections in cuts?

• Viruses

• Bacteria

• Parasites

• Fungi

Which of the following diseases is caused by bacteria?

• Influenza

• Chickenpox

• Malaria

• Tuberculosis

What role do prokaryotes play in the environment?

• They decompose organic matter

• They consume carbon dioxide

• They cause diseases

• They produce oxygen

How do prokaryotes contribute to nutrient cycling?

• By fixing carbon

• By fixing nitrogen

• By producing glucose

• By consuming oxygen

Which type of bacteria helps plants obtain nitrogen?

• Nitrogen-fixing bacteria

• Photosynthetic bacteria

• Pathogenic bacteria

• Decomposing bacteria