Collagen is a:

1. Fibrous protein

2. Globular protein

3. Lipid

4. Carbohydrate

Lipids are insoluble in water because lipid molecules are:

1. Hydrophilic

2. Hydrophobic

3. Neutral

4. Zwitter ions

Which of the following have carbohydrate as prosthetic group :

1. Glycoprotein

2. Chromoprotein

3. Lipoprotein

4. Nucleoprotein

Role of enzyme in reactions is to:
1. Decrease activation energy
2. Increase activation energy
3. Act as an inorganic catalyst
4. None of the above

Phospholipids are esters of glycerol with:
 

The major portion of the dry weight of plants comprises of:

1. Nitrogen, phosphorus, and potassium

2. Calcium, magnesium, and sulphur

3. Carbon, nitrogen, and hydrogen

4. Carbon, hydrogen, and oxygen

The most abundant organic compound on earth is:
1.  Protein
2.  Cellulose
3.  Lipids
4.  Steroids

Spoilage of oil can be detected by which fatty acid:
1.  Oleic acid
2.  Linolenic acid
3.  Erucic acid
4.  None of the above

In plants, inulin and pectin are:
1.  Reserved material
2.  Wastes
3.  Excretory material
4.  Insect-attracting material

Hydrolytic enzymes that act on low pH are called:

1. Protease

2. α-Amylase

3. Hydrolases

4. Peroxidase