Q. Parts of the plants were observed. Structure-A develops aerially and produces roots when comes in contact with the soil. Structure-B develops from underground part of the stem, grow obliquely, becomes aerial and produces roots on its lower surface. Identify, respectively the structure of A and B.

A) Sucker, stolon
B) Stolon, runner
C) Stolon, sucker
D) Runner, stolon
Explanation

Stolons are special kind of runners, which initially grow upwards like ordinary branches and then arch down to develop new daughter plants on coming in contact with the soil. Sucker is a sub-aerial branch, that arise from the main stem. Initially, it grows horizontally below soil surface and later grows obliquely upward.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.