Cell Structure and Function

What is the function of the nucleolus organizer regions (NORs)?

• They initiate DNA replication
• They contain genes for ribosomal RNA
• They form the nuclear pores
• They degrade old chromosomes

Which of the following best describes the composition of chromatin?

• RNA and lipids
• DNA and proteins
• Carbohydrates and proteins
• Lipids and DNA

What type of cell has no nucleus at maturity?

• White blood cell
• Liver cell
• Red blood cell
• Nerve cell

What is the primary role of the nucleus in cell division?

• To produce ATP for division
• To dissolve permanently
• To ensure accurate distribution of genetic material to daughter cells
• To store waste products

Where do cilia and flagella originate in the cell?

• From mitochondria
• From lysosomes
• From Golgi bodies
• From basal bodies