Fertilisation and Embryo Development in Human

Q.

What is fertilisation?

Q.

With which layer of ovum a sperm comes in contact during the process of fertilisation?

Q. The attachment of the embryo to the wall of uterus is called as .

1. fusion
2. implantation
3. fission

Q.

The expulsion of the fetus from the body of the mother in a human female is called .

Q.

The human embryo is referred to as a 'foetus' from the beginning of

1. 1st month of pregnancy

2. 2nd month of pregnancy

3. 3rd month of pregnancy

4. 4th month of pregnancy

Q.

Explain the process of fertilization in human beings?

Q. Ovulation is the process of ___which takes place in the___ of female reproductive system.

1. development of follicle; ovary
2. production and maturation of sperms; testis
3. formation, filtration and concentration of urine; kidney
4. maturation of follicle and release of ovum; ovary

Q. ................. is the name of a vital connection between mother and embryo.

1. Placenta
2. Uterus
3. Corona radiata
4. Vitelline membrane

Q. What is menstruation? Explain. (2 Marks)

Q. Embryogenesis is a post fertilisation event.

1. False
2. True

Q. Fertilisation is the process of fusion of sperm and ovum.

1. False
2. True

Q.

Where does fertilization occur?

Q. Which of the following is incorrect w.r.t. fertilisation to occur?

1. The sperms must reach the falllopian tube.
2. An ovum degenerates within 24 hours after its release.
3. Sperms remain fertile for only one day.
4. Ejection of sperm from the penis into the vagina takes place.