simple biology experiment related to biology ii

Following are some simple activities and experiments related to photosynthes..

Polygraph is a simple instrument that records qualitative changes in physiological parameters. These parameters include vital changes like cardiac variables (ECG), heart pulse rate (HR), relative blood pressure (BP), rate of breathing and so on. Popularly called the lie detector..

In this experiment all tissues external to xylem from a part of branch is girdled. Now this ringed twig is placed in a beaker containing water. It is noticed that upper leaves of shoot remains turgid and indicates water is still moving upwards through xylem. Ringing Experiment..

This type of reflex involves the brain but it is also as fast as the simple reflex. Salivation on smelling one's favourite food is an example of conditional reflex. The individual recognisesrecognizes the smell and based on a previous experience, the response (salivation) ..

This type of reflex involves the brain but it is also as fast as the simple reflex. Salivation on smelling one's favourite food is an example of conditional reflex. The individual recognisesrecognizes the smell and based on a previous experience, the response (salivation) occurs..

. When the electrodes were connected they produced a high energy spark of about 75,000 volts. Spark Discharge Apparatus Prior to the experiment, Urey and Miller evacuated the entire apparatus. Through the inlet, they passed a mixture of ammonia, methane and hydrogen in the ratio of 2..

Tapeworm Simplest triploblastic organisms showing bilateral symmetry. Mostly parasites in other animals. Body in dorsoventrally flat and leaf like or ribbon-like with bilateral symmetry. The body cavity has only one opening which serves as both the mouth and the anus. Hermaphrodites..

This type of reflex involves the brain but it is also as fast as the simple reflex. Salivation on smelling one's favourite food is an example of conditional reflex. The individual recognises the smell and based on a previous experience, the response (salivation) occurs. The reco..

Beadle and Talium reasoned that the mutant requiring onnithine for growth is defective in the enzyme producing onnithine as a result of a gene mutation. Similarly, a defect in another gene may lead to a defect in the enzyme catalysing the conversion of ornithine to citrulline and therefore this mut..

Peel off the skin of a large sized potato with a scalpel. Cut its one end to make the base flat. Make a hollow cavity in the potato almost up to the bottom. Add sugar solution into the cavity and mark the level by inserting a pin in the wall of the cavity of the tuber. Place the po..