Describe the two different ways that a drug inhibit the attachment of substrate on active site of enzymes.

Define 'active site' of an enzyme.

Which forces are involved in holding the drugs to the active site of enzymes?

Explain with two examples how elements function as activator of enzymes.

Mention three similarities and two differences between facilitated diffusion and active transport of substances in plants.

There is a pentagonal shaped park as shown in the figure. For finding its are Jyoti and Kavita divided it in two different ways. Find the area of this park using both ways. Can you suggest some other way of finding its area?

A block of mass 25 kg is raised by a 50 kg man in two different ways as shown in Fig. 5.19. What is the action on the floor by the man in the two cases? If the floor yields to a normal force of 700 N, which mode should the man adopt to lift the block without the floor yielding?

Two particles-one of mass m1, and the other of mass m2, carry equal charges. After being accelerated through the same potential difference they enter a region of uniform magnetic field and describe circular paths of radius (r_1) , and (r_2) , respectively. Find the ratio of their masses.

Why do we need to classify drugs in different ways?