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..
Functions
Essential for nitrogen fixati..
Functions
The amnion protects the embryo from injury. The amniotic fluid absorbs shock and prevents desiccation of the embryo..
Function
It acts as an extra embryonic lung and helps in exchange of gases. It also plays an important part in embryonic respiration, excretion and nutrition by developing into a placen..
Function
The uterus harbours the developing embryo and provides it with nutrients and oxygen and removes the carbondioxide and wast..
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 ..
Conduct water and minerals upwards from the roots to the stem and leaves Cells that are lignified to give mechanical strength to the plant ..Function
Provide mechanical support to the stem Being extensible, these cells readily adapt themselves to the rapid elongation of the ste..
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. It ca..
Electromagnetic waves
These are waves that can pass through vacuum in addition to passing through matter. In other words, a material medium is not necessary for their propagation. They consist of periodic variations of electric and magnetic fields at right angles to each other and also at right angles to the ..
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