Structure of Ovum MCQ - Practice Questions with Answers

contains centrioles, nucleolus and other cell organelles
 

lacks centrioles but contains nucleolus and other cell organelles
 

contains centrioles and nucleolus but lacks any other cell organelles

lacks centrioles but contain nucleus and other cell organelles

4

6

3

5

Helps in fertilization.

Provides nutrition to the developing embryo.

Helps in the formation of the zona pellucida.

Secretes hormones

Perivitelline space

Zona pellucida

Vitelline membrane

Corona radiata

        A                        B

Primary follicle      Ovum

        A                      B

Graafian follicle     Ovum
 

           A                       B

Graafian follicle      Corpus luteum

         A                            B

Tertiary  follicle       Corpus luteum

Theca interna

Stroma

Zona pellucida

Granulosa

 In birds and mammals, internal Fertilisation takes place
 

 Colostrum contains antibodies and nutrients.
 

 Polyspermy in mammals is prevented by the chemical changes in the egg surface.
 

In the human female implantation occurs almost seven days after fertilisation.

Corona Radiata
 

 Zona radiata
 

Zona pellucida
 

Chorion

 ii and iv

iv only

iii and iv

  i and ii

a)-iv, b)-iii, c)-i, d)-ii

a)-i, b)-iv, c)-ii, d)-iii

a)-iii, b)-ii, c)-iv, d)-i

a)-ii, b)-iii, c)-iv, d)-i