EVOLUTION 1.EVOLUTIONARY BIOLOGY is the study of history of life forms on earth. 2.The universe is almost 20 billion years old. 3.The BIG BANG THEORY attempts to explain to us the origin of…
CELL CYCLE &CELL DIVISION Cell cycle and Cell Division 1. Cell division Very important process in all living organisms --> to maintain continuity of life 2. During the division of…
1. BREATHING --> Process of exchange of O2 from the atmosphere with CO2 produced by the cells is called breathing, commonly known as respiration. Breathing and exchange of gases ncert…
SEXUAL REPRODUCTION IN FLOWERING PLANTS 1.Angiosperm is a flowering plant. 2.Flower is the reproductive unit. 3.Male reproductive organ: Androecium. 4.Female reproductive organ :Gynoecium. 5. ANDROECIUM : ●It consists of a…
CHEMICAL COORDINATION AND INTEGRATION https://www.facebook.com/sciencegajab/ visit for fb page CHEMICAL COORDINATION AND INTEGRATION IN LIVING ORGANISMS ARE PRIMARILY DONE BY ENDOCRINE GLANDS HORMONES ARE • Non-nutrients chemicals • Intercellular messengers •…
NEURAL CONTROL AND COORDINATION 1. The neural system Function --> coordinates and integrates @ To maintain Homoeostasis therefore it is called neural control and coordination. 2. The neural system and…
PHOTOSYNTHESIS IN HIGHER Plants 1. PHOTOSYNTHESIS IS A PHYSIO-CHEMICAL PROCESS by which green plants use light energy to drive the synthesis of organic compounds. 2. PHOTOSYNTHESIS IS IMPORTANT DUE TO TWO…
MINERAL NUTRITION 1. IN 1860, JULIUS VON SACHS (GERMAN BOTANIST) --> Demonstrated, for the first time, that plants could be grown to maturity in a defined nutrient solution in complete absence…