Class 12 Biology Reproduction Sexual reproduction in Flowering Plants



In the diagram showing the L.S of an embryo of grass, identify the answer having the correct combination of alphabets with the right part:
(a)
A-Root cap; B-Coleoptile; C-Scutellum; D-Coleorhiza; E-Epiblast; F-Shoot apex
(b)
A-Shoot apex;B-Epiblast;C-Coleorhiza;D-Scutellum;E-Coleoptile;F-Radicle
(c)
A-Epiblast; B-Scutellum; C-Coleoptile; D-Radicle;E-Coleorhiza; F-Shoot apex
(d)
A-Epiblast; B-Radicle; C-Coleoptile; D-Scutellum; E-Coleorhiza; F-Shoot apex
Correct answer: (d) 
Solution: The diagram represents a typical monocot embryo. The label A refers to epiblast. This is the remains of the second cotyledon in the monocot embryo. The label B refers to radicle. This is the root cap region. The label C refers to coleoptile. The shoot apex is protected with a shield called as coleoptile. The label D refers to scutellum. There is only one cotyledon and it is called as the scutellum. This is present in one side of the embryonal axis. The label E refers to coleorhiza. The root cap region is shielded with the help of coleorhiza. The label F refers to shoot apex. The shoot apex will develop to form the root. 
Thus, the correct answer is option D. 

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Similar topics
sexual reproduction in flowering plants
reproduction in organisms
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sexual reproduction in flowering plants
reproduction in organisms
evolution
human reproduction
reproductive health