Read the following statements about enzymes.
Which among them are correct?
I. The mechanism by which enzymes work is known as lock and key.
II. They denature at high temperatures.
III. They are mostly proteins having a tertiary structure.
IV. They may be assisted by vitamins and minerals.

Which of the following statement is correct about the mechanism of an enzyme-catallysed reaction?

Read of the following statements and choose the option which has all the correct statements :- (a) Enzymes are highly specific to substrate (b) Enzymes require optimum temperature and pH for maximum activity. (c) Almost all enzymes are protein (d) Enzyme increase the activation energy Options :-

Read the following : (a) Low temperature preserves the enzyme (b) Enzyme gets denatured at high temperature (c ) Enzyme gets dnatured at high temperature (d) Competitive inhibitor competes with the product formed Which of the following statement are true ?

Read the following : (a) Low temperature preserves the enzyme (b) Enzyme gets denatured at high temperature (c ) Enzyme does not get dnatured at high temperature (d) Competitive inhibitor competes with the product formed Which of the following statement are true ?

Which of the following statements are correct regarding the organelle, lysosome ? I. It contains enzymes mostly active in acidic pH. II. It is known as the suicidal bag . III. These organelles are directly derived from the endoplasmic reticulum . IV. It contains water , sap, excretory product and other materials not useful for the cell. (a) I , II ,III and IV (b) I and II only (c) II and III only (d) I, II and IV only

Which of the following statements are correct regarding the organelle, lysosome ? I. It contains enzymes mostly active in acidic pH. II. It is known as the suicidal bag . III. These organelles are directly derived from the endoplasmic reticulum . IV. It contains water , sap, excretory product and other materials not useful for the cell.