PATHOLOGY

Detailed explanation-1: -It helps in reproduction, and gamete formation. It helps in repairing and regeneration of damaged cells.

Detailed explanation-2: -The cell cycle is important for reproduction in some organisms, growth in multicellular organisms, replacement of worn-out or damaged cells, and repair of damaged tissues.

Detailed explanation-3: -The process of mitosis generates new cells that are genetically identical to each other. Mitosis helps organisms grow in size and repair damaged tissue. Some species of algae are capable of growing very quickly. The giant kelp Macrocystis pyrifera can grow as much as 30 centimeters (cm) in length in a single day.

Detailed explanation-4: -All multicellular organisms use cell division for growth and the maintenance and repair of cells and tissues. Single-celled organisms use cell division as their method of reproduction.

Detailed explanation-5: -It provides a ‘repair and maintenance’ service to old and damaged body cells. In unicellular organisms, mitosis is the means of reproduction: one cell becomes two, two cells become four, and so on. In mature plants, mitosis occurs in the tips of roots and stems, causing an increase in length.