Cell Structure and Function

Which organelle plays a key role in ribosome biogenesis?

• Mitochondria
• Lysosome
• Peroxisome
• Nucleolus

Which of the following is a characteristic feature of interphase nucleus?

• Presence of chromosomes
• Absence of nuclear envelope
• Disappearance of nucleolus
• Presence of chromatin

Which structure is responsible for the formation of cilia and flagella?

• Nucleus
• Ribosome
• Golgi apparatus
• Centriole

Which of the following is NOT a component of the nucleus?

• Chromatin
• Nucleolus
• Nuclear envelope
• Mitochondria

What is the role of the nuclear envelope in DNA replication?

• Initiates replication
• Terminates replication
• Accelerates replication
• Protects the DNA