Introduction to Micro-organisms

The video explores the world of microbes, including bacteria, protozoa, viruses, and fungi. It discusses their characteristics, environments, and roles in ecosystems. Bacteria are single-celled organisms found everywhere, some beneficial and others harmful. Protozoa are primary hunters in the microbial world, with some being parasites. Viruses require hosts to survive and can cause various diseases. Fungi, unlike plants, cannot produce their own food and thrive in damp environments.

Which of the following is NOT a major group of microorganisms?

• Insects

• Protozoa

• Fungi

• Bacteria

What is a key requirement for bacterial growth?

• Salt

• Moisture

• Oxygen

• Sunlight

Which disease is caused by bacteria?

• Influenza

• Malaria

• Tuberculosis

• Chickenpox

What is the primary role of protozoa in the microbial world?

• Parasites

• Producers

• Hunters and grazers

• Decomposers

How are malaria parasites transmitted?

• Via direct contact

• Through contaminated water

• Through airborne particles

• By the female Anopheles mosquito

What do viruses require to survive and reproduce?

• Host cells

• Water

• Nutrients

• Sunlight

Why are fungi not classified as plants?

• They cannot produce their own food

• They do not have leaves

• They grow in the dark

• They do not have roots