Function:
Conduct water and minerals upwards from the roots to the stem and leaves. Cells that are lignified to give mechanical strength to the plant. Tracheids with scalariform p..
Conduct water and minerals upwards from the roots to the stem and leaves. Cells that are lignified to give mechanical strength to the plant. Tracheids with scalariform p..Function
Provide mechanical support to the stem. Being extensible, these cells readily adapt themselves to the rapid elongation of the stem..
Functions
It causes elongation of stem (high concentration) and root (low concentration). It promotes root initiation in cuttings and callus. (Callus is an undifferentiated mass of cells from which the entire plant body can be grown by tissue culture techniques.) It also promotes root development. ..
Functions
The clavicle provides attachment for some of the muscles of the neck and shoulder and thus acts as prop to the arm. The clavicle is the most commonly fractured bone in the body. It may be broken by direct or indirect violence, such as falling on the hand or the shoulder. The bone is usually fractu..
Functions
i. It takes part in the formation of the protective thoracic basket. ii. It has a significant role in respiratory mechani..
Functions
Nitrogen is a constituent of amino acids, proteins, amides, nucleic acids, enzymes some co-enzymes, chlorophyll and alkaloids. It is, therefore, essential for cell division, full vegetative and reproductive growth, metabolic activities of cell, photosynthesis, e..
Function
1. For the formation of sulphur containing protein. 2. It is a component of two vitamins. (B and Biotin). 3. In onion and garlic, sulphur occurs in the form of glucosides, which provide characteristic odour to these plants. 4. Sinigrin and sinalbin are glucosides in black and white mustards respect..
Functions
1. Calcium is a component of calcium pectate, which is found in the middle lamella. 2. Acts as an activator of enzymes like ATP-ase, some kinases, phospholipases, a -amylase and succinate dehydrogenase. 3. Takes part in lipid metabolism. 4. Required in the maintenance of cell membrane. 5. Essential..
Functions
1. Activator of enzymes like oxidases, peroxidases, dehydrogenase, kinases and dicarboxylases. 2. Maintenance of lamellar structure of chloroplast. 3. Essential for photolysis of water and evolution of oxyg..
Functions
1. Favours absorption of calcium 2. Produces root nodules in legum..
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