IMPORTANT UPCOMING EXAMS QUESTIONS  QUESTION1. Which one of the following is not an enzyme? (1)Amylase (2)Pepsin (3)Somatotrophin (4)Trypsin Answer1.(3)Somatotroph...

Ampere  (symbol:  A)  The  ampere  is defined as ‘the constant current that, if maintained in two straight parallel conductors of infinite length and negligible cross-sectional area and placed one meter apart in a vacuum, would produce between them a force equal to 2 × 10–7  newtons...

By ‘direction of current’  in metallic conductors, we mean the direction in which current  passes through the load. In other words, it is its direction through the external circuit,  never  within the source of potential difference. During the eighteenth century, the great  American scientist...

Immune System The immune system helps to monitor and fight infection and prevent  cancer.  It  includes  specialized  white  blood  cells—T cells,  B  cells, and  neutrophils—that  are  always  on  call  to  help. Your  body’s ...

Atoms look like miniature solar systems  No one has ever seen an atom and no one ever will.  Atoms are so complex that they cannot be described in terms that laymen can understand. Scientists are constantly learning new things about the way atoms behave and are discovering more and more new particles within...

The typical symptoms of diabetes occur as a result of the high levels of glucose in the bloodstream and its passage into the urine and other tissues. These are frequent urination and thirst. Thirst arises as a result of the dehydration caused by the frequent urination. Dehydration and loss of nutrient calories in the...

The son of a physician to  the royal family of Macedon, Aristotle was born in Stagira, Chalcidice, in the northeast of modern Greece. He was sent to Athens at 17 to study with Plato at the Academy, and remained there until Plato’s death 20 years later. Surprisingly, Aristotle was not appointed Plato’s successor...