Cell Structure and Function

Which of the following best describes chromatin network?

• A network of RNA and lipids in cytoplasm
• A network of DNA and proteins in the nucleus
• A membrane-bound organelle for protein synthesis
• A structure involved in cellular respiration

Why can't a cell survive without a nucleus?

• It produces energy for the cell
• It synthesizes lipids
• It controls cellular activities and stores genetic material
• It maintains cell shape

What is the primary function of the nucleolus in a eukaryotic cell?

• Site of DNA replication
• Storage of lipids
• Store house for RNA and proteins
• Center for ATP production

How does the nucleus contribute to cellular identity?

• By changing its shape
• By moving to different locations
• By selectively expressing specific genes
• By producing hormones

What is the role of the nucleus in growth and repair?

• It directly repairs damaged tissues
• It stores repair enzymes
• It directs the synthesis of proteins needed for tissue maintenance
• It produces new cells directly