Cell Structure and Function

Which of the following organelles is enclosed by a double membrane?

• Lysosome
• Golgi apparatus
• Nucleus
• Peroxisome

What is the primary purpose of chromatin condensation into chromosomes?

• To stop gene expression
• To initiate protein synthesis
• To increase transcription
• To ensure accurate segregation during cell division

Which of the following cells is uninucleate?

• Skeletal muscle cell
• Red blood cell
• Liver cell
• Osteoclast

What is the shape of the nucleus in most cells?

• Irregular
• Spherical
• Flattened
• Spiral

Which of the following is true about the nuclear pore complex?

• It blocks all movement
• It allows only DNA to pass
• It allows selective transport of macromolecules
• It is made of cellulose