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4. Parenatal Development and care during pregnancy - class 11

4. Parenatal Development and  care during pregnancy

Q. 1 Select and write the most appropriate 
answer from the alternatives given
1. Conception takes place at the time of 
««..«.
a) pregnancy b) I mpl antation 
c) birth 
2. Fertilisation of an egg by a sperm normally 
occurs in ............... 
a) fal l opian tube b) ut erus 
c) ov ary 
3. Fertilised egg cell is called ............... 
a) z ygote b) morul a 
c) conception 
4. Sex of the child is confirmed at the time of 
............... 
a) birth b) conception 
c) pregnancy 
Exercises
�. 3eriod of foetus is from ............... 
a) 0- 2 w eek s b) 3 t o 8 w eek s 
c) 9 w eek s to birth 
6. Implantation of ovum to uterine walls is 
known as ............... 
a) menopaus e b) conception 
c) fertil iz ation 
Q. 2 State whether the following sentences 
are True or False. 
1� 3eriod of ovum is from conception to 2 
weeks. 
2� Fertilized egg cell is released during 
menstruation. 
3� Identical twins have different placenta 
4� 3lacenta maintains stable temperature in 
the womb
Q. 3. Match the colu mn 
 A B
1. 3eriod of foetus a. Iron deficiency 
2. Anaemia b. Diabetes 
3. AIDS c. 9 weeks to birth 
4. Amenorrhea d. Sign of pregnancy 
�. 3eriod of embryo e. Formation of internal body parts
6. Endoderm f. 3 weeks to 8 weeks 
 g. HI9 
Q. 4 Answer the following in one or two 
sentences. 
1. Which layer of embryo forms skin, nails, 
hair? 
2. What are diagnostic tests of pregnancy" 
3. What is ectopic pregnancy" 
4. What is Morulla stage" 
�. What is gestation"
Q. 5. List the following
1. 3renatal stages
2. Embryo’s life support system
3. Minor disturbances in pregnancy
4. Factors affecting prenatal development.

Summary

Q. 6 Write short notes. 
1. Toxemia 
2. Importance of fertilisation 
3. Uterus 
4. Anemia 
�. Antenatal checkup 
6. Signs of pregnancy 
�. Types of birth 
8. Rh factor 
Q. 7. Differentiate between
1. 3eriod of ovum and period of embryo. 
2. 3lacenta and Amniotic Sac
Q. 8. Complete the given table.
 Identical Twins Fraternal / 1on identical Twins
 1� BBBB BBBBB 1� Two different sperms fertilizes 
 fertilizes single ova two different ova.
 2� Uni =ygotic 2� BBBB =ygotic
 3� BBBBB genetic make�up 3� Different genetic make�up
 4� E.g. Boy�Boy or ����� 4� E.g. Boy�Boy, Boy BBBB, BBBB

Q. �. 8nscramble the word to get the answer from the given clue.
 Clu e : 3rocess in which sperm and ova combine to create a single cell called zygote.
 W or d : rzfanitloiei
Q. 10. Arrange the stages in serial order : period of embryo, period of ovum, period of fetus.
Q. 11 . Write in detail signs of pregnancy. 
Q. 12 . Discus any three factors affecting prenatal development. 
Q. 13 . Read the following paragraph and answer the questions.



 1. What do you mean by fertilization"
 2. How many chromosomes does the individual child get from the parents"
 3. What is the function of yolk sac"

4. Complete the passage by choosing the appropriate words given in the bracket:
 Semen is deposited in the .................. . Semen contains ................. . By hormonal attraction 
and contraction of .................., they are transferred to ................. . Once it reaches the ovum, 
it penetrates ................. . Nucleus of sperm unites with the nucleus of ................. . Fertilized 
................. is formed. The zygote then begins its ................. division and it starts moving to the 
................. for implantation 
 �uterus, mitotic, cytoplasm, muscles, fallopian tube, ovum, =ygote, sperms, cervix�

Project / Self Study


• 9isit to Maternity home and collect the information regarding antenatal checkup, care and 
services.

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