Plant Movements
Since plants don’t have muscles and nervous system they cannot move. Growth and movements in plants occur due to internal and external factors.Read More…
Category: Biology
Coordination in plants
Plants don’t have nervous system. They don’t have muscles either. Still, they are observed to have proper control and coordination. How? Read More…
Our Central and Peripheral Nervous Systems
Brain and Spinal cord together constitute the Nervous System. The nervous system receives information in the form of impulses from all parts of the bRead More…
Reflex Action and Reflex Arc
Human actions are both voluntary and involuntary. Voluntary actions depend on our will. Clapping hands, reading, writing, playing, talking etc areRead More…
Impulses and their conduction
The information received by a receptor at the end of a dendrite sets of a chemical reaction that creates an electric impulse. What is an impulse?
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Nervous System of Animals
Most of the animals have a network of very fine filamentous or threadlike structures which exchanges information. These structures are called as nervRead More…
Control and Coordination in Living Beings
It is now a general opinion that if we see something moving, it is alive. Some of the motions in living organisms are due to growth, as we see in Read More…
Mechanism of Breathing and Cellular Respiration
The mechanism of Breathing and role of diaphragm – The mechanical process of breathing involves inspiration and expiration. When the diaphragm goRead More…
Photosynthesis: Experimental Studies
Experiment: 1 Starch Test Plucked a plant leaf in the evening and boiled it in water and alcohol one by one. The green colour of the leaf is removRead More…
Respiration in Aquatic and Terrestrial Animals
Respiration is different in aquatic and terrestrial animals. Aquatic animals have to breathe in water. They have to breathe faster than those aniRead More…