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Draw the following diagrams related to h...

Draw the following diagrams related to human reproduction and label them.
(i) The zygote after first cleavage division
(ii) Morula stage
(iii) Blastocyst stage (sectional view)

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(i) The zygote after first cleavage division

(ii) Morula stage

(iii) Blastocyst stage (sectional view)
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(i) Explain the events taking place at the time of fertilisation of an ovum in a human female. (ii) Trace the development of the zygote up to its implantation in the uterus. (iii) Give the name and draw a labelled sectional view of the embryonic stage that gets implanted.

Which of the following statements, support the view that elaborate sexual reproductive process appeared much later in the organic evolution ? (i) Lower groups of organisms have simpler body design. (ii) Asexual reproduction is common in lower groups. (iii) Asexual reproduction is common in higher groups of organisms. (iv) The high incidence of sexual reproduction in angiosperms and vertebrates. Choose the correct answer given below.

The diagram shows the side view of the female reproductive system (i) Label the parts A to D. (ii) In which region are sperms released during intercourse?

(i) When and where does spermatogenesis occur in a human male? (ii) Draw the diagram of a mature human male gamete. Label the following parts: acrosome, nucleus, middle piece and tail. (iii) Mention the functions of acrosome and middle piece.

Study the figure given below and answer the questions that follows. (i) Name the stage of human embryo the figure represents. (ii) Identify 'A' in the figure and mention its function. (iii) Mention the fate of the inner cell mass after implantation in the uterus.

Answer the following correctly. (i) What structures form the 'corpus luteum' and at what stage? (ii) Name two hormones secreted by it. (iii) What is the name of degenerated corpus luteum? (iv) Name the hormone that shoots up in ovulation.

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ARIHANT PUBLICATION-HUMAN REPRODUCTION -QUESTIONS FOR PRACTICE (Part III Menstrual Cycle, Fertilisation and Embryonic Development)(Short Answer Type Questions)
  1. What is fertilization ? In man, where does it take place ?

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  2. In our society the women are often blamed for giving birth to daughter...

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  3. A sperm has just fertilised a human egg in the Fallopian tube. Trace t...

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  4. Name the embryonic stage that gets implanted in the uterine wall of th...

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  5. When and where do chorionic villi appear in humans? State their functi...

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  6. A woman passes out hCG in the urine during the pregnancy. Why?

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  7. Mention the name of hormones and their source organs produced only dur...

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  8. Placenta acts as an endocrine gland. Explain.

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  9. What are the functions of placenta ?

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  10. Write a note on placenta.

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  11. When and how does placenta develop in human female?

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  12. Where is morula formed in humans? Explain the process of its developme...

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  13. State the function of yolk.

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  14. (i) Explain the events taking place at the time of fertilisation of an...

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  15. Draw the following diagrams related to human reproduction and label th...

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  16. Study the figure given below and answer the questions that follows. ...

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  17. What is parturition? Which hormones are involved in induction of partu...

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  18. Why parturition is called a neuroendocrine mechanism? Explain. Descr...

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  19. How is the milk production regulated by hormones in human female? Expl...

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  20. Why is it important to feed the newborn babies on colostrum?

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