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Question
In human beings, after fertilisation, the structure which gets embedded in the wall of uterus is
Options
ovum
embryo
foetus
zygote
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Solution
embryo
Explanation:
After fertilisation, the zygote divides repeatedly to form a ball of hundreds of cells called an embryo. The embryo moves down from oviduct into the uterus, where it gets embedded. This is called implantation.
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RELATED QUESTIONS
When pregnancy does not occur, the life of corpus luteum is about ______.
State whether the following statement is true or false:
Fertilization occurs in the vagina.
Choose the correct answer:
Virgin birth is called ______________
What happens to uterus if fertilization takes place? And what happens to uterus if fertilization does not take place?
Name the following:
Fusion of sperm and ovum.
The figure given below represents the female reproductive system of a mammal.
What will happen if the part B on both sides gets blocked?
Name the female sex hormones and structures which secrete them.
Study the diagram given below and then answer the questions that follow:
(i) Name the part labeled A. Name any two hormones produced by the part labeled A.
(ii) What happens to the part labeled B.
(1) if fertilization takes place?
(2) If fertilization does not take place?
(iii) Where does fertilization occur?
(iv) Draw a neat diagram of the human sperm as seen under high magnification and label the following parts.
(1) Acrosome
(2) Mitochondria
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Fertilization is the product of the egg nucleus and the sperm nucleus.
Match the items in column I with those in column II and write down the matching pairs (some may not match).
| Column I | Column II | ||
| (a) | Acrosome | (i) | An embryo which looks like human baby. |
| (b) | Gestation | (ii) | Luteinizing hormone |
| (c) | Menopause | (iii) | Ovum producing cells. |
| (d) | Foetus | (iv) | Semen |
| (e) | Oogenesis | (v) | Spermatozoa |
| (f) | Ovulation | (vi) | Complete stoppage of menstrual cycle. |
| (vii) | Time taken by a fertilised egg till the delivery of baby. |
