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प्रश्न
Given below are the events in human reproduction. Write them in correct sequential order.
Insemination, gametogenesis, fertilisation, parturition, gestation, implantation
Given below are the stages in human reproduction . Write them in correct sequential order.
Implantation, Gametogenesis, Gestation, Parturition, Fertilization, Insemination.
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उत्तर
Gametogenesis, Insemination, Fertilisation, Implantation, Gestation, Parturition.
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संबंधित प्रश्न
Name the human male reproductive organ that produces sperms and also secretes a hormone. Write the functions of the secreted hormone.
Draw a sectional view of human female reproductive system and label the part where
(i) eggs develop.
(ii) fertilisation takes place.
(iii) fertilised egg gets implanted.
What are sexually transmitted diseases?
What are the different methods of contraception?
State the changes that take place in the uterus when Implantation of embryo has occurred
Differentiate between Sperm duct and fallopian rube (function)
The structure formed by the villi of the embryo and the uterus of the mother.
State whether human beings reproduce by sexual method or asexual method.
Which part of the human body produces ova?
Which part of the human body passes sperms from a man to a woman?
What is the frequency of menstrual cycle in human females (or women)?
What is the life support system of a fetus?
The ratio of the number of chromosomes in a human zygote and a human sperm is ______
When a fertilised egg E formed in the oviduct of a human female divides repeatedly to form an embryo, the embryo gets implanted in the thick and soft lining of the uterus. After this a disc-like special tissue T develops between the uterus wall and embryo through which all the requirements of the developing embryo (and foetus) are met from the mother's body, The embryo is connected to the tissue T through a string like structure S.
(a) What is the other name of fertilised egg cell E?
(b) What is the name of tissue T?
(c) Name the string-like structure S.
(d) Name two substances which pass from mother's blood to embryo through tissue T and, one type of substance which passes from embryo to mother's blood.
(e) What happens to S when the baby is born? Why?
When a female child is born, her ovaries already contain thousands of immature eggs (or ova) contained in immature structures A. On maturing, A bursts open and an egg shoots out of the ovary in a process called B. The process B starts in the females at puberty and occurs again and again after a time period x. Before every occurrence of process B, the inner lining of uterus becomes thick and soft with lots of blood vessels in it. When the egg cell gets fertilised by a sperm, then an event C occurs in the life of mature human female which lasts for time period y leading to the birth of baby. If, however, the egg cell released by the ovary does not get a sperm to fuse with, then the thick and soft inner lining of uterus breaks down and comes out of the female's body in an event called D. The occurrence of event D is controlled by chemical substances E.
(a) What are A?
(b) What is process B?
(c) What is the time period x?
(d) Name the event C.
(e) How much is the time period y?
(f) What is the name of process D?
(g) Name the chemical substances E.
Write two examples of sexually transmitted diseases caused by bacteria.
Explain how the transmission of virus and bacteria diseases be prevented?
Give appropriate term of the following:
The onset of reproductive phase in a young female.
Choose the correct answer:
Fertilization occurs in _____________
Give the functions of the following:
Vagina
Define the following:
Implantation
Answer the following question.
What is contraception? List three advantages of adopting contraceptive measures.
Explain the term Parturition or birth.
Column ‘II’ is a list of items related to ideas in Column ‘I’. Match the term in Column ‘II’ with a suitable idea given in Column ‘I’.
| Column I | Column II |
| (i) Acrosome
(ii) Ovulation (iii) Sperm (iv) Menopause (v) Implantation (vi) Fertilization (vii) Contraception in males |
(a) Male gamete
(b) Oviduct (c) Uterus (d) Spermatozoa (e) Progesterone (f) Stoppage of the menstrual cycle (g) Sudden change in genes |
The male homologue of the female clitoris is ____________.
How does human sperm locomote?
