English
Maharashtra State BoardSSC (English Medium) 10th Standard

Give scientific reason. There is a menopause when women are 45-50 years old. - Science and Technology 2

Advertisements
Advertisements

Question

Give scientific reason.

There is a menopause when women are 45-50 years old.

Explain
Short/Brief Note
Advertisements

Solution

  1. The natural cessation of menstruation that occurs between the age of 45-50 years is known as menopause.
  2. Menopause occurs as the secretion of hormones controlling the functions of the female reproductive system either stops or becomes irregular.
shaalaa.com
  Is there an error in this question or solution?
Chapter 3: Life Processes in Living Organisms Part - 2 - Give scientific reasons

APPEARS IN

SCERT Maharashtra Science and Technology 2 [English] 10 Standard SSC
Chapter 3 Life Processes in Living Organisms Part - 2
Give scientific reasons | Q 4

RELATED QUESTIONS

Draw a sectional view of human ovary and label the different follicular stages, ovum and Corpus luteum.


The following is the illustration of the sequence of ovarian events (a − i) in a human female

(i) Identify the figure that illustrates ovulation and mention the stage of oogenesis it represents.

(ii) Name the ovarian hormone and the pituitary hormone that have caused the above mentioned event.

(iii) Explain the changes that occur in the uterus simultaneously in anticipation.

(iv) Write the difference between ‘c’ and ‘h’.

(v) Draw a labeled sketch of the structure of a human ovum prior to fertilization.


Multiple choice question.

The given figure shows human sperm. Various parts of it are labelled as A, B, C, and D. Which labelled part represents acrosome?


At the time of birth, there are _______________ oocytes in the ovary of a female foetus.


In meiosis, the number of chromosomes becomes ___________.


Give a schematic representation of spermatogenesis and oogenesis in humans.


Draw a labelled diagram of a Graafian Follicle.


Select the pair of cells which does not divide further by mitosis.


It The cell division in secondary oocyte is suspended at ______.


Cells of corona radiata remain grouped together by ______.


In oogenesis haploid egg is fertilised by sperm at which stage?


Which of the following are called dual gland?


Read the following and answer from given below:

Oogenesis is the process of the formation of an ovum in the ovaries. It consists of three phases: multiplication, growth, and maturation. Oogenesis is controlled by hormones GnRH, LH, FSH. GnRH secreted by the hypothalamus stimulates the anterior lobe of the pituitary gland to secrete LH and FSH.

Which cell division is involved in the formation of secondary oocytes?


3-celled male gamete develops in:


The number of chromosome groups at the equatorial plate in metaphase-I of meiosis in a plant with 2n = 50 shall be:


Follicular atresia is:


Germ cells present in the seminiferous tubules undergo ______


Explain Oogenesis with diagram.


Distinguish between human sperm and ovum.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×