Home
Class 12
BIOLOGY
A human female experiences two major cha...

A human female experiences two major changes menrache and menopause during her life. Mention the significance of both the events.

Text Solution

Verified by Experts

Menarche is the first menstrual cycle of the female and indicates the attainment of sexual maturity and ovulation from the ovary. It comes between 10 to 14 years of age. Menopause is the period of cessation of menstruation in the female and indicates the end of the reproductive fertile period. It comes between 50 to 52 years of age.
Promotional Banner

Topper's Solved these Questions

  • HUMAN REPRODUCTION

    MODERN PUBLICATION|Exercise NCERT FILE (EXEMPLAR PROBLEMS (D ) LONG ANSWER TYPE QUESTION)|5 Videos

  • HUMAN REPRODUCTION

    MODERN PUBLICATION|Exercise HIGH ORDER THINKING SKILLS AND BRAIN TWISTING (VERY SHORT ANSWER QUESTION )|10 Videos

  • HUMAN REPRODUCTION

    MODERN PUBLICATION|Exercise NCERT FILE (EXEMPLAR PROBLEMS (B)VERY SHORT ANSWER TYPE QUESTION)|15 Videos

  • HUMAN HEALTH AND DISEASES

    MODERN PUBLICATION|Exercise Chapter Practice Test|2 Videos

  • MICROBES IN HUMAN WELFARE

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST (Long Answer Type Question )(Five marks each)(Section -E)|8 Videos

Similar Questions

Explore conceptually related problems

Differentiate between major structural changes in the human ovary during the follicular and luteal phase of the menstrual cycle.

(a) Explain the menstrual phase in a human female. State the levels of ovarian and pituitary hormones during this phase. (b) Why is follicular phase in the menstrual cycle also referred as proliferative phase ? Explain. (c) Explain the events that occur in a graafian follicle at the time of ovulation and thereafter. ltbvrgt (d) Draw a graafian follicle and label antrum and secondary oocyte.

Mention the major events during photosynthesis.