
How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy?

Important Questions on Morphology and Modifications
List-I | List-II | List-III | |||
A | China Rose | i | Acropetal succession | I | Branched peduncle |
B | Colocasia | ii | Mesocarp is fleshy | II | Hypogynous |
C | Panicle | iii | Alternative phyllotaxy | III | Epigynous |
D | Cucumber | iv | Neuter flowers | IV | Corm |
The correct match is:


Consider the following morphological biochemical or physiological characteristics of plants.
Presence of hairy leaves Production of more nectar is flower
. High sugar content in plant parts Presence of higher aspartic acid concentration.
Choose the correct combination of statements which give natural resistance to plants against insect pests:



Reason (R): Insectivorous plants trap insects for their nitrogen requirement


List-I | List-II | ||
(A) | Alstonia | I | Roots at lower nodes of the stem |
(B) | Anamus sativus | II | Leaflets are attached at a common point in the leaf |
(C) | Sugarcane | III | Swollen placenta |
(D) | Bombax ceiba | IV | More than two leaves at every node |
V | Underground lateral branches producing |

Alternate and opposite arrangement of leaves.




Mustard and sunflower have opposite arrangement of leaves.

A student observed Quisqualis plants each with nodes, Hibiscus plants each with nodes, and Calotropis plants each with nodes. All these plants contain leaves at every node.
What will be the total number of leaves of these three plants put together?





A type of phyllotaxy in which more than two leaves develop from a node in the form of whorl is seen in


