Match List-I with List-II with respect to the embryo of a grass.List-…

The correct answer is Option (2) → A-IV, B-II, C-I, D-III

The embryo of a grass (a monocot) has a single cotyledon and a few parts that a dicot embryo does not have. Each part can be placed by its position on the embryonal axis.

(A) Scutellum — this matches (IV) Cotyledon situated towards one side (lateral) of the embryonal axis. In the grass family the single cotyledon is called the scutellum.

(B) Coleoptile — this matches (II) Hollow foliar structure enclosing the shoot apex and a few leaf primordia. It covers the epicotyl region like a sheath.

(C) Coleorrhiza — this matches (I) Undifferentiated sheath enclosing the radicle and root cap. It is found at the lower end of the embryonal axis.

(D) Epicotyl — this matches (III) Portion of the embryonal axis above the level of attachment of the cotyledon. In a grass, this is the part above the attachment of the scutellum.

So the correct match is A-IV, B-II, C-I, D-III.

NCERT Extract:
Embryo – “Embryos of monocotyledons (Figure 1.14 b) possess only one cotyledon. In the grass family the cotyledon is called scutellum that is situated towards one side (lateral) of the embryonal axis. At its lower end, the embryonal axis has the radical and root cap enclosed in an undifferentiated sheath called coleorrhiza. The portion of the embryonal axis above the level of attachment of scutellum is the epicotyl. Epicotyl has a shoot apex and a few leaf primordia enclosed in a hollow foliar structure, the coleoptile.”

Figure 1.14 (b) L.S. of an embryo of grass