Cells - Components of the Nucleus

The video tutorial explains the nucleus as the largest structure in eukaryotic cells, acting as the control center where genetic instructions are stored. It describes chromatin, which condenses into chromosomes during mitosis, and the nuclear membrane, which separates the nucleus from the cytoplasm. The nuclear membrane is dotted with ribosomes and is continuous with the endoplasmic reticulum. Nuclear pores allow molecule transport, including mRNA. The nucleolus, located in the nucleus, produces ribosome material and regulates cell division.

What is the primary role of the nucleus in eukaryotic cells?

• To produce energy for the cell

• To store and protect genetic material

• To facilitate cell movement

• To digest cellular waste

During which process does chromatin condense into chromosomes?

• Photosynthesis

• Respiration

• Mitosis

• Translation

What is the function of nuclear pores in the nuclear membrane?

• To generate energy

• To control the transport of molecules

• To store nutrients

• To synthesize proteins

Which structure is continuous with the nuclear membrane?

• Lysosome

• Endoplasmic reticulum

• Mitochondria

• Golgi apparatus

What is the role of the nucleolus in the cell?

• To break down toxins

• To transport proteins

• To store lipids

• To produce ribosomal material