Module: | Pre-fertilization: Micro/Megasporogenesis
Q20: Consider the following statements regarding albuminous and exalbuminous seeds:
1. Exalbuminous seeds completely consume the endosperm during embryo development before seed maturation.
2. Wheat, maize, castor, and coconut are classic examples of exalbuminous (non-endospermic) seeds.
3. Albuminous seeds retain a part of the endosperm because it is not completely used up during the embryogeny phase.
Which of the above statements is/are correct?
2. Wheat, maize, castor, and coconut are classic examples of exalbuminous (non-endospermic) seeds.
3. Albuminous seeds retain a part of the endosperm because it is not completely used up during the embryogeny phase.
Which of the above statements is/are correct?
✅ Correct Answer: B
The correct option is B. Statements 1 and 3 are correct, while Statement 2 is incorrect.
Based on the presence or absence of endosperm in the mature seed, angiosperm seeds are classified into two structural types.
Exalbuminous (or non-endospermic) seeds entirely deplete their endosperm to nourish the growing embryo; the food reserves are subsequently stored in the cotyledons.
Examples include peas, groundnuts, and beans.
Albuminous (or endospermic) seeds retain a significant portion of their endosperm into maturity, using it to nourish the seedling during germination.
Statement 2 is entirely incorrect because wheat, maize, castor, and coconut are the textbook standard examples of albuminous seeds, heavily relying on their persistent endosperm.
This categorization is a recurring foundational concept in seed morphology examinations.
Based on the presence or absence of endosperm in the mature seed, angiosperm seeds are classified into two structural types.
Exalbuminous (or non-endospermic) seeds entirely deplete their endosperm to nourish the growing embryo; the food reserves are subsequently stored in the cotyledons.
Examples include peas, groundnuts, and beans.
Albuminous (or endospermic) seeds retain a significant portion of their endosperm into maturity, using it to nourish the seedling during germination.
Statement 2 is entirely incorrect because wheat, maize, castor, and coconut are the textbook standard examples of albuminous seeds, heavily relying on their persistent endosperm.
This categorization is a recurring foundational concept in seed morphology examinations.