Sunday, 24 July 2016

LEAF

LEAF

  1. IT DEVELOPS FROM SHOOT APICAL MERISTEM.
  2. IT CONSISTS OF THREE PARTS-LEAF BASE,PETIOLE & LEAF BLADE.
  3. LEAF BASE MAY HAVE STIPULES (LEAF LIKE SMALL STRUCTURES)
  4. LEAF BASE MAY BE SWOLLEN IN LEGUMINOUS PLANT & IT IS CALLED PULVINUS.
  5. PETIOLE IS HOLDING THE LEAF BLADE.
  6. LEAF BLADE OR LEAF LAMINA IS HAVING VEINS AND VEIN LETS. 
VENATION

Breathing and Exchange of Gases

  Breathing and Exchange of Gases Table of Content What is Breathing and Respiration? Respiratory organs Human Respiratory System Mechanism ...