Question

Define with examples endospermic and non endospermic seeds.

Answer 1

Endospermic seeds:

1.  In endospermic seed, endosperm is present

2.Food is not stored in cotyledons

3.The cotyledons are thin and papery

4.Perisperm does not develop from nucellus

5.Suspensor, haustoria do not substitute the endosperm

Example: Castor, Maize

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Non- endospermic seeds:

1.In non endospermic seed, endosperm is absent

2.Food is stored in cotyledons

3.The cotyledons are thick and fleshy

4.Perisperm develops from nucellus

5.Suspensor, haustoria substitute the endosperm

Example: Pea, Bean, Cucurbita.

HOPE IT HELPS YOU!!!!!!!

         

 

Answer 2

Hey Dear,

◆ Endospermic seed -

• Seeds which show presence of endosperm in mature seed are called endospermic seeds.
• Cotyledons are papery thin & can't act as storage organ.
• Nucellus doesn't develop into perisperm.
• Examples - arabisopsis thalala, etc.

◆ Non-endospermic seed -

• Seeds which show absence of endosperm in mature seed are called non-endospermic seeds.
• Cotyledons are thick fleshy & act as storage organ.
• Nucellus develop into perisperm.
• Examples - pisum sativus, etc.

*[Reference - 12th Biology textbook.]

Thanks for asking..