Page 2 - 2. Lesson Notes- The Shoot system, Modifications of stem

Modifications of the stem:

 The stem is modified to form a tendril in some plants. These tendrils coil
around any rough surface they come in contact with and provide support to
the weak stem. These tendrils are also called climbers or twiners.

A TWINER

 The stem can also be modified to store food as seen in the ginger,
potato and onion.

UNDERGROUND STEM MODIFICATIONS

 In plants such as the cactus, the stem becomes green and fleshy and

prepares food for the plant. It also stores water in it.

A CACTUS PLANT