Endosperm Persistence in Seeds — NEET Biology
📚 Practice ConceptEndosperm may either be completely consumed by the developing embryo (e.g., pea, groundnut, beans) before seed maturation or it may persist in the mature seed (e.g. castor and coconut) and be used up during seed germination. Split open some seeds of castor, peas, beans, groundnut, fruit of coconut and look for the endosperm in each case. Find out whether the endosperm is persistent in cereals – wheat, rice and maize.
Which of the following statements concerning endosperm development and its characteristics are NOT correct? S1: Endosperm development usually precedes embryo development to provide assured nutrition to the developing embryo. S2: Free-nuclear endosperm formation involves nuclear divisions not immediately followed by cell wall formation. S3: In non-albuminous seeds like wheat and maize, the endosperm is completely consumed during embryo development. S4: The primary endosperm nucleus (PEN) is triploid, formed by the fusion of two polar nuclei and one male gamete. S5: Coconut water is a cellular endosperm, while the white kernel is free-nuclear endosperm. S6: Endosperm in castor oil seed is persistent and serves as a major food reserve.
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