Q5 of 63 Page 162

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 fertilized egg till the delivery of baby.








































Column I





Column II





Explanation





Acrosome





(v) Spermatozoa





Acrosome form the head part of a sperm.





Gestation





(vii) Time is taken by a fertilized egg till the delivery of baby





Gestation is the period of carrying the embryo inside the females. For humans, it is 280 days.





Menopause





(vi) complete stoppage of the menstrual cycle





Menopause marks the end of the reproductive age. It is when the menstrual cycles come to a stop.





Foetus





(i) An embryo which looks like human baby





The phase between the embryonic stage and birth - is referred as the foetus.





Oogenesis





(iii) ovum producing cells





Oogenesis refers to the formation of ova that occurs inside the ovum producing cells.





Ovulation





(ii) Luteinizing hormone





The rise in the levels of Luteinizing hormones triggers ovulation.





More from this chapter

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3

Rewrite the terms in the correct order so as to be in a logical sequence.

(a) Implantation, ovulation, child birth, gestation, fertilization.


(b) Coitus, ovum, sperm, sperm duct, urethra, vagina.

 4

Give appropriate terms for each of the following:

(a) The onset of reproductive phase in a female.


(b) Rupture of follicle and release of the ovum from the ovary.


(c) Monthly discharge of blood and disintegrated tissues in the human female.


(d) Process of fusion of ovum and sperm.


(e) Fixing of developing zygote (blastocyst) on the uterine wall.

 1

State whether the following statements are TRUE (T) or FALSE (F):

(i) Fertilisation occurs in the vagina. (T/F)


(ii) The uterus is also known as the birth canal. (T/F)


(iii) Nutrition and oxygen diffuse from the mother’s blood into the foetus’s blood through amnion. (T/F)


(iv) Gestation period in humans is about 380. (T/F)

 1

Rewrite any two of the wrong statements by correcting only one word either at the beginning or at the end of the sentence.