Cell Structure and Function

Which organelle is responsible for protein synthesis in a plant cell?

• Mitochondrion
• Golgi apparatus
• Ribosomes
• Lysosome

What is a key function of the plasma membrane in prokaryotes related to transport?

• DNA replication
• Protein synthesis
• Selective permeability
• ATP synthesis

What is a distinguishing feature of eukaryotic cells?

• Smaller size than prokaryotes
• Lack of ribosomes
• Presence of a variety of complex locomotory structures
• Single circular chromosome

What is the function of gas vacuoles in cyanobacteria?

• Storing nutrients
• Facilitating movement
• Providing buoyancy
• Replicating DNA

What is a key feature of eukaryotic ribosomes compared to prokaryotic ribosomes?

• They are smaller and composed of 50S and 30S subunits
• They are found only in the nucleus
• They are larger and composed of 60S and 40S subunits
• They are free in the cytoplasm only