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Cell Size Limitations Quiz

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Questions and Answers

Which of the following statements about viruses is correct?

Viruses are composed of nucleic acid (DNA or RNA) and protein. (correct)
Viruses can exist independently outside of host cells.
Viruses possess cytoplasm and organelles like other cells.
Viruses are capable of replicating without using a host cell's machinery.

Which of the following statements about viral structure is correct?

Viruses have a characteristic shape defined by their protein capsid. (correct)
All viruses have the same size and shape.
The largest viruses can be several times bigger than bacterial cells.
Viral capsids are made of carbohydrates instead of proteins.

What is the primary function of the viral capsid?

To synthesize new viral proteins during infection.
To protect and enclose the viral nucleic acid. (correct)
To provide energy for viral replication.
To facilitate the entry of viruses into host cells.

Which of the following statements about bacteriophages (phages) is correct?

Phages are viruses that infect bacterial cells. (D) Signup and view all the answers

What is the primary role of viruses in research?

To serve as tools for cell and molecular biology research. (A) Signup and view all the answers

Which of the following statements about viroids is correct?

Viroids are smaller than viruses and lack a protein coat. (C) Signup and view all the answers

How are viruses typically named?

Based on the disease they cause. (D) Signup and view all the answers

Which of the following statements about prions is correct?

Prions are abnormally folded proteins that can cause diseases. (B) Signup and view all the answers

Which of the following statements about viral diseases is correct?

Viral diseases can affect humans, animals, and plants. (D) Signup and view all the answers

Which of the following components is not present in viruses?

Cytoplasm (B) Signup and view all the answers