Q1- Differentiate between the following: (at least two points)
a) Spines and Thorns.
Ans-
b) Herb, Shrubs and Trees
c) Parallel and reticulate venation
d) Climbers and creepers.
e) Tap Root and Fibrous root.
Q2- Write the function of the following
a) Tendrils
b) Thorns
c) Root
d) Flower
Answers
Answer:
Spines
Spines often occupy same position as leaves
Thorns
Thorns are usually formed in place of buds (in the leave's axil)
Function of Tendril
They are known to be modified portions of leaf, stem or petiole. Their main function is to provide support to the plant as it climbs up a structure. By doing so they allow a plant to find a more suitable area to grow due to more light. When stems are modified into tendril they help plants to climb.
Function of Thorns
The predominant function of thorns, spines, and prickles is deterring herbivory in a mechanical form. For this reason, they are classified as physical or mechanical defenses, as opposed to chemical defenses.
Function of roots
Root, in botany, that part of a vascular plant normally underground. Its primary functions are anchorage of the plant, absorption of water and dissolved minerals and conduction of these to the stem, and storage of reserve foods.
