Question:
Non-endospermous seeds are found in
Non-endospermous seeds are found in
Updated On: Jul 28, 2022
- bean
- gram
- pea
- All of these
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The Correct Option is D
Solution and Explanation
Seed is fertilised and ripened ovule, consisting a dormant embryo reserve food for its future development and protective covering. The seed which store their food in endosperm are called endospermic or endospermous seed or albuminous seed, e.g., castor, ruber, maize, etc. The seeds where food reserve is present in cotyledons are called non-endospermic or exalbuminous seeds, e.g., bean, gram, pea, Sagittaria and orchids (smallest seed). Perispermic seeds contain reserve food in persistent nucellsus.
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Concepts Used:
Post-Fertilization Events
There are series of events that happen in the development of plants after their fertilization process to form a fruit from a diploid zygote. The four different developmental steps that occurs during post fertilization are:
- Development of an Endosperm: The endosperm, a tissue, present in the seed during the fertilization, precedes the development of an embryo. It is categorized into three types.
- Nuclear Formation
- Cellular Formation
- Helobial Formation
- Development of an Embryo: Embryogeny is the embryo development process and it starts developing at the micropylar end of the embryo sac in the zygote. The formation stages of embryogeny are almost the same in both the plants dicot and monocot, regardless of their structure.
- Monocot Embryo
- Dicot Embryo
- Development of a Seed: A Seed has Three Body Parts:
- Seed Coat
- Cotyledon
- Embryo Axis
- Formation of a Fruit: After the cell division and separation in the ovary, it is changed into fruit because of stimuli received from fertilization just as developing seed. The pericarp which might be fleshy like guava, tomato, or cucumber or might be weathered and dry like pea, bean, or mustard. After all the events the two types of fruits are formed:
- True Fruit
- False Fruit