Microbiology: Viruses, Fungi, Protozoa, Bacteria

What is a key characteristic that distinguishes viruses from living organisms?

What component makes up the cell walls of fungi?

Which of the following groups is known for being unicellular and aerobic?

How do fungi primarily obtain their nutrients?

In what way do bacteria differ from viruses?

Virus characteristic

Protozoa characteristic

Fungi nutrient method

Viruses

Viruses are not considered living organisms
Consists of a nucleic acid core (DNA or RNA) surrounded by a protein coat
Cannot reproduce outside of a host cell
Cannot metabolize on their own
Often infest prokaryotic and eukaryotic cells, causing diseases

Fungi

Eukaryotic cells (with a true nucleus)
Mostly multicellular
Cell walls are composed of chitin
Obtain nutrients by absorbing organic material from their environment
Reproduce by releasing spores

Protozoa

Unicellular aerobic eukaryotes
Have a nucleus and complex organelles
Obtain nutrition by absorption or ingestion through special structures
The largest group of organisms in the world in terms of numbers, biomass, and diversity
Cell walls are made of cellulose

Bacteria Versus Viruses

Viruses and bacteria can both cause disease, but they are very different
Viruses are not considered living organisms, bacteria are
Bacteria can be beneficial to human and animal health, while viruses are typically harmful
They spread diseases in distinct ways

This quiz explores the fundamental differences and characteristics of viruses, fungi, protozoa, and bacteria. Understand how these microorganisms function, reproduce, and their impact on health. Test your knowledge on microbiological concepts and their classification.