Q.
The following is a diagram of the just spawned frog’s egg; with the parts labelled from A to E. identify the parts and choose the correct option from those given figure.
A) A –cytoplasm, B-plasma membrane, C-vitelline membrane, D-yolk, E-jelly coat
B) A –cytoplasm, B- vitelline membrane, C- plasma membrane, D-yolk, E-jelly coat
C) A -yolk, B- plasma membrane, C- vitelline membrane, D- cytoplasm, E- jelly coat
D) A - yolk, B-jelly coat, C- vitelline membrane, D- cytoplasm, E-plasma membrane
Explanation
Frog’s egg is spherical and about 1.6 mm in diameter with a convering of vitelline memrane and three concentric layers of albuminous jelly. The roughly one half blackish brown animal hemisphere containing most of the cytoplasm and large nucleus is uppermost, whereas the whitish vegetal hemisphere is lowermost. An unfertilized ripe egg of frog is shown in the diagram below. [image:3_image80.jpeg]
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.