What are the different types of modified stems?

What are the different types of modified stems?

Modified stems can be categorized into three types:

• Underground – Rhizome, Bulb, Corm, Tuber.
• Subaerial – Runner, Sucker, Offsets, Stolon.
• Aerial – Tendrils, Thorn, Bulbils, Cladode, Phylloclade.

What are modified stems used for?

It conducts water, minerals, and food to other parts of the plant body through various systems. In some plants, the stem is modified to perform other functions such as storage of food, support, vegetative propagation, and protection. These are simply known as modified stems and can be categorized into various classes.

What are modified stem give example?

A rhizome is a modified stem that grows horizontally underground; it has nodes and internodes. Vertical shoots may arise from the buds on the rhizome of some plants, such as ginger and ferns. Corms are similar to rhizomes, except they are more rounded and fleshy (such as in gladiolus).

What is meant by stem modification?

Modification of stem The stem is the part of the plant that provides support and helps in conduction. In some plants, the stem is modified for some other functions such as: Underground stem modification- in such modification, stems remain under the soil and store the large amount of food e.g., potato, ginger etc.

What are the modification of stem class 11?

These modified stems are called phylloclades. Usually the phylloclades retain water in the form of mucilage. e.g., Opuntia, Casuarina, Cocoloba and Ruscus. In Opuntia, the leaves are modified into spines and the stems becomes fleshy leaf like phylloclade.

Is a potato a modified stem?

Though potato seems to be a root, it is a stem. It is actually a modified stem usually called tuber. As the tubers grow underground, they are connected by small stem sections called stolons. This is why potatoes are also called tuberous stems.

Is corm a modified stem?

Corm is a type of underground modified stem which is spherical, branched, vertically growing with diameter more than length. It bears reduced nodes and internodes. Adventitious roots arise from the base of node.

What are the modification of stem class 6?

For protection Stems may be modified as thorns, like in bougainvillea or may be in the form of hard and sharp prickles, as in rose (Fig. 8.5), to protect the plant from being eaten by animals. For support Stems of some climbers like grapes and passion flower are modified to form special structures called tendrils (Fig.

What is modified stem 6?

Stem modifications: To manufacture food Stems of some plants become leaf-like and flattened like that of a cactus and perform photosynthesis. For protection Stems may be modified as thorns, like in bougainvillea or may be in the form of hard and sharp prickles, as in rose (Fig.

Which of the following is modified stem?

The correct answer is Potato. In potato, the underground portion is a modified stem in that it stores reserve food and has all characters of stem i.e. roots and shoots appear from it and it has buds (eyes) also. Potato is a tuber (that part carry out photosynthesis- the green color part seen in young potato).

What are three types of specialized stems?

The specialized cell types found in plant stems, leaves, roots, flowers, and fruits are organized into three tissue systems: the ground tissue system, the dermal tissue system, and the vascular tissue system.

What is the modified root of a plant?

Modified Roots:( Metamorphic Roots) Modified roots are roots which change their structures to adapt to their environment. There are seven types of modified roots: a) Prop roots: Prop roots grow from the stem to the ground. They give extra support to the plants. Examples: Ficus , maize, mangrove , pandanus.

What are examples of underground stems?

Many plants have underground modified stems that may be mistaken for roots. Examples of underground stems include corms, such as taro (left); rhizomes, such as ginger (center); and tubers, such as potatoes (right).

What are the different types of plant stems?

Some different types of plant stems include herbaceous, ligneous, climbing, tubers, woody and aerial. Some specialized stems include buds, thorns and prickles.