Cell Structure and Function

What is the main function of the nuclear matrix?

• Stores water
• Produces ATP
• Transports proteins
• Organizes nuclear components

Which part of the centriole contributes to the formation of spindle fibers?

• Central hub
• Nuclear pore
• Nucleolus
• Peripheral fibrils

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

• Enhances protein synthesis
• Promotes cell division
• Stores energy reserves
• Separates nucleus from cytoplasm

What is the fluid-filled interior of the nucleus called?

• Cytoplasm
• Stroma
• Matrix
• Nucleoplasm

Which of the following is NOT found in the interphase nucleus?

• Chromatin
• Nucleolus
• Nuclear matrix
• Chromosomes