Q1.Which is the vegetative part of a potato tuber? (a) Offsets O ) (b) Internodes (c) Nodes (d) Runners

Read the following statements and select the correct option. Statement -1 : the stem tubers are the swollen ends of spcialised underground stem branches, which help in vegetative propagation of the plant. Statement-2 : Solanum tuberosum is an example of a stem tuber which stores inulin as the main reserve food material.

Which one of the following forms the base of vegetable fibres? (A) Cellulose (B) Proteins (C) fats (D) Oils

Which of the following statements is/are true (A) It the stem is jointed with solid nodes and hollow internodes, it is called caudex (B) In Tridax the stem is decumbent (C) Corn is a condensed form of rhizome growing more or less in vertical direction (D) Sucker is an underground modification of stem (E) Biparous type of cymose branching is seem in Saraca.

A : Runner, tuber, sucker, offset etc. are vegetative propagules. R: Two parents are involved the formation of these structure.

Tubers of Sweet potato (Ipomoea batata) take part in vegetative propagation and grow to form new plants. How can we ascertain that they are not modified stems.