EASY
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Verticillaster inflorescence, the ratio between male and female flowers is:

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Important Questions on Structural Organisation in Plants

MEDIUM
Find the correct statements among the following:
A) For classification of higher organisms we need to know technical terms and variation of the parts
B) Roots arise from radicle are called fibrous roots
C) The modified bract is called "Spathe"
D) In Apiaceae family, each flower is surrounded by involucre of bracts.
MEDIUM
Find the wrong statements among the following.
A) In cyathium bisexual, achlymadeous flowers are present.
B) If calyx and corrella are not distinct they are called perianth.
C) In nut, pericarp is stony.
D) The thin membranous structure in the axil of leaf is called bractiole.
HARD

Match the following lists:

  List I   List II
A) Branches of limited growth modified for photosynthesis I) Cashew
B) The peduncle is branched with one branch each time II) Asparagus
C) Multicarpellary, syncarpous unilocular ovary, stony pericarp III) Hamelia
D) Placenta is axial and ovules are attached to multilocular ovary IV) Colocasia
    V) Lemon

 

HARD
Match the following lists.
  List-I   List-II   List-III
(A) Parthenocarpic fruit (i) Dichasial and monochasial cyme (I) Avicennia
(B) Verticellaster (ii) Roots grow vertically upwards (II) Agave
(C) Swampy areas (iii) Dioscorea (III) Banana
(D) Storage of food (iv) Sucker (IV) Lamiaceae
The correct match is:
EASY
Achlamydeous, cymose inflorescence, with many male flowers arranged around a single tricarpellary female flower is a characteristic of          
MEDIUM
   List - I     List - II
(a) Flowers appear to have arisen from the same point of peduncle (i) Corymb
(b) The sessile flowers are arranged on peduncle in acropetal manner (ii) Umbel
(c) The sessile unisexual and neuter flowers arranged in acropetal succession protected by a modified bract (iii) Spike
(d) Unisexual and/or bisexual sessile flowers develop centripetally on a condensed peduncle (iv) Capitulum
    (v) Spadix

The correct answer is

HARD
Describe the flower of Musa paradisiaca in technical terms.
EASY
Match the following lists:
  List-I   List-II
(A) Musa, Cocos, Colocasia (I)

Corymb

(B) Crotalaria, Mangifera (II)

Spike

(C) Cassia, Cauliflower (III)

Umbel

(D) Achyranthes, Grasses (IV) Spadix
    (V) Raceme

The correct match is:

EASY

The teacher described Hibiscus as solitary Cyme. What does it mean?

MEDIUM
Define the term inflorescence. Explain the basis for the different types of inflorescence in flowering plants.
EASY
In an inflorescence where flowers are borne laterally in an acropetal succession, the position of the youngest floral bud in the floral axis shall be:
HARD

Differentiate with a diagrammatic representation of racemose and cymose inflorescence.

EASY
In cyathium inflorescence, the ratio between male : female flower is