Question

Define:

1. Reparative regeneration
2. Capacitation
3. Menarche

Answer 1

The regeneration is the reoccurring of the damaged cells. This is of two types, as reparative regeneration and the restorative regeneration. The capacitation and menarche deals with the maturation and the growth of the female and the male reproductive gametes.

Complete answer:

1. Reparative regeneration:
   Reparative regeneration is the process in which the damaged cells or tissues are regenerated in the multicellular organisms. Healing of the damaged cell or tissue takes place. Hence this reparative regeneration is also known as healing of the injury. This occurs in the both vertebrates and the invertebrates.
2. Capacitation:
   It is a process involved in the maturation of the spermatozoa of the mammals. This is a very important process in which it has to grow enough to fertilize an egg of the female. This process takes place in the membrane of the sperm cell. The hyperactivity of the sperm remains for only thirty minutes in the vagina.
3. Menarche:
   This takes place in the female. It is the first menstrual cycle or the menstrual bleeding that takes place in the female. It is considered as the puberty and when this menarche happens, the particular female is capable of producing its offspring. The ages that the women attain her menarche varies. This depends on the health, nutrition, genetics and the environmental factors.
   

Note: The menarche of the women lies most probably from 10 - 20 years. The capitation occurs only in the mammals. For the non-mammals this process does not occur, the sperm is ready for fertilization after release from the male.