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Prokaryotic Cell Structure Quiz

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Questions and Answers

What is a prokaryote?

Any organism that lacks a distinct nucleus and other organelles due to the absence of internal membranes.

Is a virus a prokaryote?

No, viruses are neither prokaryotic nor eukaryotic.

What is the size range of most bacteria?

The average size of most bacteria is 0.2 to 2.0 µm.

What is the size of Escherichia coli?

Escherichia coli is about 1.1 to 1.5 µm wide by 2.0 to 6.0 µm long. Signup and view all the answers

What are Actinomycetes known for forming?

Actinomycetes typically form long filaments called hyphae that may branch to produce a network called a mycelium. Signup and view all the answers

What is the average size range of most bacteria?

The average size of most bacteria is between 0.2 and 2.0 µm. Signup and view all the answers

What is the size of Mycoplasma, one of the smallest bacteria?

Mycoplasma has a diameter of 0.3 µm. Signup and view all the answers

What is the approximate length of Thiomargarita magnifica, one of the largest bacteria?

Thiomargarita magnifica may grow to be as large as 1-2cm. Signup and view all the answers

What is the size of the yeast Saccharomyces cerevisiae?

The yeast Saccharomyces cerevisiae measures 8 μm in diameter. Signup and view all the answers

What is the approximate size of the smallest known viruses?

The smallest known viruses are only about 10 nm in diameter. Signup and view all the answers

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