- Nucleus [A]: Contains the cell's genetic material (DNA) and controls cellular activities.
- Nucleolus [A]: Site of ribosome assembly within the nucleus.
- Kinetochore [B]: Protein structure on the chromatid where spindle fibers attach during cell division.
- Chromatid [B]: One of the two identical copies of a replicated chromosome.
- Spindle [C]: Microtubule-based structure that separates sister chromatids during mitosis.
- Microtubule [C]: Tubular protein filaments that form the spindle and move chromosomes.
- Cytoplasm [D]: Gel-like substance inside the cell membrane, containing organelles and facilitating metabolic reactions.
- Centrosome [D]: Organelle that organizes microtubules and forms the spindle poles during cell division.
- Cleavage Furrow [E]: Contractile ring-induced indentation of the cell surface that pinches the cell in two during cytokinesis.
- Contractile Ring [E]: Ring of actin and myosin filaments that contracts to form the cleavage furrow.
Parent Tip: Review the logic above to help your child master the concept of cell parts worksheet.
