Multiple Choice QuestionsTricarpellary, syncarpous gynoecium is found in flowers of
Solanaceae
Fabaceae
Poaceae
Poaceae
Which of the following is not a stem modification?
thorns of citrus
tendrils of cucumber
Flattened structures of Opuntia
Flattened structures of Opuntia
Stems modified into flat green organs performing the functions of leaves are known as
phyllodes
phylloclades
scales
scales
The standard petal of papilionaceae corola is also called
pappus
vexillum
corona
corona
Among bitter gourd mustard, brinjal, pumpkin, China rose, lupin, cucumber, sunn hemp, gram, guava, bean, chilli, plum, Petunia, potato tomato, rose, With potato, onion, aloe and tulip, how many plants have hypogynous flower?
Six
Ten
Fifteen
Fifteen
C.
Fifteen
|
|
Flowers |
|
|
Hypogynous |
Perigynous |
Epigynous |
|
Gynoecium present above all the floral parts Ovary is superior |
Gynocecium present in the centre. Other part almost at same level. Ovary half inferior, e.g., Plum,rose |
Ovary enclosed by thalamus and gets fused with it Other parts above ovary Ovary inferior e.g., Guava, cucumber. |
Pulm, rose are perigynous and guava, cucumber are epigynous. So, total remaining plants are hypogynous.
In China rose the flowers are
actinomorphic, hypogynous with twisted aestivation
actinomorphic, epigynous with valvate aestivation
zygomorphic, hypogynous with imbricate aestivation
zygomorphic, hypogynous with imbricate aestivation
Read the different components from I to IV in the list given below and tell the correct order of the components with reference to their arrangement from outer side to inner side in a woody dicot stem:
(a) Secondary cortex
(b) Wood
(c) Secondary phloem
(d) Phellem
The correct order is
(c), (d), (b), (a)
(a), (b), (d), (c)
(d), (a), (c), (b)
(d), (a), (c), (b)
The wheat grain has an embryo with one large, shield-shaped cotyledon known as
Epiblast
Coleorrhizia
Scutellum
Scutellum
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