Cell Structure and Function

Which type of cells lack a nucleus at maturity?

• Muscle cells
• Nerve cells
• Epithelial cells
• Erythrocytes of mammals

What is the nucleolus primarily responsible for?

• DNA replication
• Lipid synthesis
• Energy production
• Ribosomal RNA synthesis

What is the primary function of the nuclear pores?

• DNA replication
• Cell division
• Protein folding
• Movement of RNA and protein molecules

What is the central part of the proximal region of the centriole called?

• Matrix
• Centrosome
• Basal body
• Hub

How many peripheral fibrils are present in a centriole?

• Six
• Seven
• Eight
• Nine