Cell Structure and Function

What is the function of the cell wall in bacteria?

• Stores genetic material
• Produces ATP
• Facilitates movement
• Maintains shape and prevents lysis

Which of the following statements about the plasma membrane in prokaryotes is true?

• It contains cholesterol
• It is rigid and non-fluid
• It is selectively permeable
• It has pores for RNA transport

What is the role of ribosomes in prokaryotic cells?

• DNA replication
• Energy production
• Protein synthesis
• RNA synthesis

What is the term for the region containing DNA in a prokaryotic cell?

• Cytoplasm
• Nucleus
• Nucleoid
• Ribosome

What is the size range of a typical virus?

• 10–20 µm
• 1–2 µm
• 0.1 µm
• 0.02–0.2 µm