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Prokaryote Classification Quiz

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Questions and Answers

What is the meaning of the word 'prokaryote' derived from?

Microscopic organism
Ancient organism
Single cell
Before nucleus (correct)

In the three-domain system, prokaryotes are divided into which domains?

Eubacteria and Archaebacteria
Bacteria and Archaea (correct)
Archaea and Eukaryota
Eukaryota and Bacteria

Which of the following is a characteristic of prokaryotes?

Presence of nuclei
Sexual reproduction via fusion of gametes
Asexual reproduction via mitosis (correct)
Multicellular stages in life cycle

What is the function of bacterial microcompartments discovered in prokaryotes?

<p>Quasi-organelles enclosed in protein shells (B)</p> Signup and view all the answers

How do some prokaryotes like cyanobacteria form colonies?

<p>Held together by biofilms (D)</p> Signup and view all the answers

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Study Notes

Prokaryote Characteristics

The term "prokaryote" is derived from the Greek words "pro" meaning "before" and "karyon" meaning "nut", referring to the absence of a true nucleus.

Classification

Prokaryotes are divided into two domains: Archaea and Bacteria in the three-domain system.

Characteristics

A characteristic of prokaryotes is the lack of a true nucleus, instead having a single circular chromosome found in the cytoplasm.

Microcompartments

Bacterial microcompartments discovered in prokaryotes have the function of separating metabolic processes from the rest of the cell.

Colony Formation

Some prokaryotes, such as cyanobacteria, form colonies by adhering to each other through sticky surfaces or specialized structures.

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