Q121
Pneumatophores occur in
Correct Answer
Option A
Solution
(a) Some lateral roots of mangroves become specialised as pneumatophores in saline mud flats.
These are lateral roots that grow upward (negative geotropism).
Morphology of Flowering Plants
Q122
Edible part of banana is
Correct Answer
Option B
Solution
(b) Banana (Musa paradisica) is a fleshly fruit.
Edible part is fleshy mesocarp and rudimentary endocarp, develops from trilocular, inferior ovary.
Q123
Epipetalous stamens with free filaments and fused anthers occur in
Correct Answer
Option A
Solution
(a) Asteraceae possess five stamens with free filaments but anthers are united forming a tube around the style (syngenesious).
Q124
Hypanthodium is a special kind of inflorescence where the receptacle is fleshy and flask-shaped
Correct Answer
Option C
Solution
(c) Hypanthodium is a special kind of inflorescence where the receptacle is usually fleshy and flask-shaped. e.g. Ficus.
Q125
Floral features are chiefly used in Angiosperms identification because
Correct Answer
Option C
Solution
(c) Reproductive parts (floral features) are more stable and conservative than vegetative parts, which exhibit changes due to the environmental factors quite readily.
Q126
Angiosperm to which the largest flowers belong is a total root parasite
Correct Answer
Option C
Solution
(c) Rafflessia is an angiosperm, which produces the largest flowers. It is also a total root parasite.
Q127
Long filamentous threads protruding at the end of the young cob of maize are
Correct Answer
Option A
Solution
(a) Long filamentous threads of maize are the styles of the pistils. In fact, these are the longest styles in plants.
Q128
Which of the following is a flowering plant with nodules containing filamentous nitrogen-fixing micro-organism
Correct Answer
Option D
Solution
(d) Casuarina equisetifolia is also known as Australian pine.
It is a deciduous tree.
It bears a superficial resemblance to the conifer genus Pinus.
Q129
Replum is present in the ovary of flower of
Correct Answer
Option B
Solution
(b) Replum is present in the ovary of flower of mustard.
A false septum called replum develops between the two parietal placentae in mustard and other members of family Brassicaceae.
Q130
An example of axile placentation is:
Correct Answer
Option B
Solution
(b) An example of axile placentation is citrus.
In this type of placentation the ovary is sectioned by radial spokes with placentas in separate locules.
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