Advertisements
Advertisements
प्रश्न
Write the functions of the following organs of reproduction:
a. Ovaries
b. Seminal vesicle and prostate glands
Advertisements
उत्तर
(a) Functions of ovaries:
a. They produce eggs.
b. The eggs are released from the ovaries by the process of ovulation.
c. The ovaries also secrete the female sex hormone oestrogen, which brings about changes in girls at the time of puberty.
(b) Functions of seminal vesicle and prostate glands:
a. They produce the ejaculatory fluid.
b. This fluid helps in the transport of sperms and provides nutrition to the sperms.
APPEARS IN
संबंधित प्रश्न
Explain how the embryo gets nourishment inside the mother’s body.
What are the different methods of contraception?
The pituitary hormone which stimulates contraction of uterus during child birth.
The diagram given below is that of a developing human foetus. Study the diagram and then answer the questions that follow:
- Label the parts numbered 1 to 3 in the diagram.
- Mention any two functions of the part labelled 2 in the diagram.
- Explain the significance of the part numbered 3 in the diagram.
- Define the term ‘Gestation’. What is the normal gestational period of the developing human embryo?
- Mention the sex chromosomes in a male and female embryo.
Describe in brief the structure of placenta
Which structures in human female are equivalent to the following structures in the male?
- testes
- vas deferens
- penis
In each case say in what respect the structures are equivalent?
Draw a labelled diagram of the human female reproductive system. With the help of this diagram, explain the working of human female reproductive system.
In a flower, the parts that produce male and female gametes are respectively :
(a) sepal and anther
(b) filament and stigma
(c) anther and ovary
(d) stamen and style
X and Y are two human beings. The organ A in the reproductive system of X releases a mature gamete B once a month which goes into a tube-like structure C through a funnel-like opening. The organ D in the reproductive system of Y makes and releases gametes E which pass through a duct F and are introduced by an organ of Y, into the body of X. B and E fuse together in C to form a new cell G. The cell G divides repeatedly to form a ball of cells H which gets embedded in the lining of organ I of reproductive system of X where it grows and develops into a baby.
(a) Name (i) organ A, and (ii) gamete B.
(b) Write two names of tube-like structure C.
(c) Name (i) organ D, and (ii) gamete E.
(d) Write two names of duct F.
(e) Name (i) cell G (ii) ball of cells H, and (iii) organ I.
(f) Out of X and Y, which one is (i) male, and (ii) female?
The germ cell A produced by a person X is round in shape and it fuses with another germ cell B having a long tail and produced by a person Y. The fusion of A and B produces a new cell C. The cell C divides repeatedly and grows inside the organ D of person X to form E in which the body features of the unborn baby are not much developed. E grows further to form F in which the various body features of the unborn baby (like hands, legs, head, eyes, and ears, etc.) can be identified. F grows further and ultimately forms a baby. What are A, B, C, D, E and F? Out of the two persons X and Y, which one is male and which one female?
The normal gestation period in humans is:
Describe in brief the role of prostate gland in human male reproductive system.
Sketch and label human female reproductive system.
Is the woman responsible for sex-determination of child? Justify your answer.
Identify the given diagram.
Name the parts 1 to 5. 
Rewrite the following terms in a correct and logical sequence:
The luteal phase, follicular phase, menstrual phase, ovulatory phase.
Give Technical Term:
What are the age restrictions for marriages by law for boys and girls in India?
The male homologue of the female clitoris is ____________.
The following is the illustration of the sequence of ovarian events (a-i) in a human female.
Write the difference between C and H.
The membranous cover of the ovum at ovulation is ______.
Given below is a group of terms. In the group, one pair indicates the relationship between the two terms. Rewrite and complete the second pair on a similar basis.
Female gonad : Ovaries :: Male gonad : ______.
