Secondary metabolites

All of the following is true about primary metabolites except

• They are food storage products

• They have nutritional values

• Tannin is one of its representative class

• Protein is one of its representative class

All of the following are secondary metabolites except

• Volatile oils

• Fats

• Alkaloids

• Tannins

Proteins can be tested with:

• Sudan III

• Millon's reagent

• Iodine

• Ruthenium red

Fixed oil can be tested with:

• Sudan III

• Millon's reagent

• Ruthenium red

• Iodine

Pyrogallol tannins are

• Condensed tannins

• Hydrolysable tannins

• Give green color with FeCl3

• Precipitate with bromine water

Example of hemostatic agent used in skin cuts

• Starch

• Proteins

• Fixed oils

• Tannins