Explain with suitable diagram in how many ways a drug can bind to the active site of an enzyme thereby preventing a substrate to bind with that enzyme.

Part of active site of enzyme where substrate is held is known as

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

What is the role of competitive inhibitor during enzyme action? (a) It enhances enzyme action (b) It declines enzyme action (c) It alters the active site of the enzyme and prevents the binding of substrate (d) it inhibits breaking of chemical bond of the substrate

Identify the wrong statements (a) The substrate binds to active site of enzyme and not fitting into active site (b) The binding of substrate induces the enzyme to alter its shape (c ) Chemical bonds of substrate break down not to form now enzyme product complex (d) The enzyme releases the products of the reaction and run through catalytic cycle once again

Arrange the steps of catalytic action of an enzyme in order and select the correct option I. The enzyme releases the products of the reaction and the enzyme is free to bind to another substrate II. The active site of enzyme is in close proximity of the substrate and breaks the chemical bonds of the substrate III. The binding of substrate induces the enzyme to alter its shape fitting more tightly around substrate. IV. The substrate binds to the active site of the enzyme

Assertion (A): Competitive inhibitors compete with natural substrate for their attachment on the active sites of enzymes. Reason (R) : In competitive inhibition, inhibitor binds to the allosteric site of the enzyme.

Serine, aspartic acid and phenylalanine are present at active site of an enzyme. What are the forces responsible for binding of these amino acids to active site?

Assertion (A) : Non-competitive inhibitor inhibits the catalytic activity of enzyme by binding with its active site. Reason (R): Non-competitive inhibitor changes the shape of the active site in such a way that substrate can't recognise it

Cyanide kills animlas by inhibiting cytochrome oxidase (an enzyme of respiration) by binding irreversibly with copper. It does not bind with active site. This is an example of

Read the following statements regarding the mineral nutrition in plants (1) For the elements that are actively mobilized within the plants, the deficiency symptoms tend to appear first in the young tissues. (2) Manganese competes with iron and magnesium for uptake and with magnesium for binding with enzymes. (3) Manganese inhibits calcium traslocation in shoot apex. (4) Rhodospirillum is aerobic free-living nitrogen fixing microbe. Which of these are correct