Modified Or Specialized Functions Of Stems Flashcards
Modified or specialized functions of stems
- Unusual method of support
- Photosynthesis
- Uncutinized epidermis
- Reproduction
- Storage
- Protection
Two unusual method of support
Tendrils and twinners
Sample of tendrils
Cadena de amor, ampalaya, squash
Sample of twinners
Balloon vine
Example of root climbers
Creeping ivy
Two types of stems in photosynthesis
Green stems and phylloclades
Example of green stems
Stick plant
Example of phylloclades(dadophylls)
Cacti
Sample of uncutinized epidermis
Digman
Specialized function for the Development of buds in some parts of the stem,, ginger potato and gabi
Reproduction
Specialized functions of the stem as a storage
Fleshy underground stems ginger, potato, gabi
Stems are modified into thorns and spines bougainvillea rose pomelo and calamansi
Protection
Economic importance of stems
- Sources of lumber, wood pulp for papers, and fibers for linen and rope.
- Bark of the cork oak is used for stoppers, insulation, life preservers and padding.
- Quinine, used for the treatment of malaria is extracted from cinchona bark.
- Source of rubber
- Food stores such as the potato tuber.
- Sources of sugar and molasses which come from sugarcane.
- Cinnamon from the bark of cinnamonium is used as food flavoring.
- Tars and wood alcohol are distilled from hardwood trees like oak and hickory.
- Resin and turpentine are obtained from softwood trees such as yellow pine.
- Cellulose is obtained from plant cell walls of wood which is used as a base in the manufacturer of celluloid cellophane and rayon and lacquers or ethyl alcohol.