The Seed Flashcards

1
Q

______ after fertilisation, develop into seeds

A

ovules

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2
Q

a seed is made up of

A

seed coat
embryo

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3
Q

embryo is made up of

A

radicle, embryonal axis, one or two cotyledons, plumule

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4
Q

two layers of seed coat

A

outer testa
inner tegmen

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5
Q

what is hilum

A

a scar on seed coat through which the developing seeds were attached to the fruit

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6
Q

above the hilum is a small pore called

A

micropyle

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7
Q

cotyledons are fleshy and full of

A

reserve food material

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8
Q

how is endosperm formed

A

as a result of double fertilisation

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9
Q

example of a dicot seed which has endosperrm

A

castor

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10
Q

what is endosperm

A

food storing tissue

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11
Q

examples of dicot seeds which are non-endospermous

A

bean
gram
pea

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12
Q

example of a monocot seed which is non-endospermic

A

orchids

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13
Q

in seeds of cereals such as __________, the seed coat is membranous and fused with ______________

A

maize
fruit wall

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14
Q

proteinous outer covering of endosperm

A

aleurone layer

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15
Q

embryo consists of one large and shield shaped cotyledon called ___________

A

scutellum

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16
Q

plumule and radicle are enclosed in sheaths called

A

coleoptile
coleorhiza