Question

Which one is monocot albuminous seed?
A. Maize
B. Wheat
C. Rice
D. All of the above

Answer 1

The seeds which store food material in their cotyledons are albuminous while the ones which do not store food material in their cotyledons are non-albuminous.

Complete answer: Seeds can be classified on the basis of the presence and absence of endosperm. Those seeds which possess an endosperm at the time of maturity are called Albuminous or Endospermic seeds. This is seen in most of the monitors e.g.: grasses, cereals, etc. and also many dicots have this feature (albuminous seeds) e.g.: custard apple and poppy seeds. All varieties of gymnosperms are albuminous. The seed coat is developed from the tissue, the integument which originally surrounds the ovule. The monocots show the presence of single cotyledons hence they are called monocots while the non-endospermic show presence of two cotyledons hence they are called dicots.
-Option A maize is monocot as it shows the presence of single cotyledon and albuminous as the endosperm is possessed but not completely used by developing an embryo instead is put in cotyledons. Hence, it is a monocot albuminous.
-Option B is wheat. Wheat is monocot as it shows the presence of a single cotyledon and albuminous as the endosperm is possessed but not completely used by developing an embryo instead is put in cotyledons. Hence, it is a monocot albuminous.
-Option C is Rice. Rice is monocot as it shows the presence of a single cotyledon and albuminous as the endosperm is possessed but not completely used by developing embryos instead is put in cotyledons. Hence, it is a monocot albuminous.
Hence, the correct option is D, i.e., All of the above.

Note: The exceptions are present everywhere. Here, also an exception which is of castor. Castor is a dicot plant and according to it should be non-endospermic, i.e., the endosperm is not present in castor at the time of maturity.