Question

In dicot embryo hypophysis is
A Terminal cell of suspensor that takes part in absorption of nourishment.
B Middle cell of suspensor that grows to push the embryo downwards.
C Last cell of suspensor that forms radicle.
D Part of the embryo that gives rise to the radicle.

Answer 1

Hint:Suspenders are anatomical structures found in certain fungi and plants. In plants, suspenders are found in zygotes in angiosperms, connecting the endosperm to an embryo.

Complete answer:
In plants, suspenders are found in zygotes in angiosperms, connecting the endosperm to an embryo. Usually in dicots the suspensor cells divide transversally a few times to form a filamentous suspensor of 6-10 cells.
After fertilization of the egg, a zygote is formed. The zygote divides by mitosis to form two cells, a smaller daughter cell towards the chalaza pole, called the apical cell and a larger daughter cell towards the micropylar pole called the basal cell.
The basal cell divides several times transversely to form a row of cells which is called the suspensor. The lowermost i.e. terminal cell of the suspensor functions as hypophysis which helps in nutrient absorption.

A Terminal cell of suspensor that takes part in absorption of nourishment.

Note:In plant ovules, the chalaza is located opposite the micropyle opening of the integuments. It is the tissue where the integuments and nucleus are joined.Basal cell is a general term for relatively undifferentiated cells in an epithelial sheet that give rise to more specialized cells acting as stem cells.