Question

26) In order to study the different parts of
an embryo
of
a dicat secod a

teacher provides secod of
kidney bean maize and gram
which secods will you choose for this experiment on which basis you do
choose
the specific seeds.
​

Answer 1

Answer:

(Pea, gram or red kidney bean).

Observation:

1. Zygote divides transversely forming a basal cell towards the micropyle and a terminal cell towards the chalaza.

2. The basal cell divides by transverse divisions and finally forms 6-10 celled suspensors.

3. The uppermost cell of suspensor swells up to form a vesicular cell while the lowest cell of the suspensor is called hypophysis. Hypophysis forms part of the radical and root cap.

4. The terminal embryonal cell divides by transverse and vertical divisions and forms 16-celled globular embryo.

5. The globular embryo later becomes heart-shaped due to its differentiation into cotyledons.

6. The embryo and cotyledons become larger and curved.