Study of interaction of living organisms with other organisms and their environment relates with _____.

1. 1. Social biology
   2. Botany
   3. Pharmacology
   4. Ecology

Main use of salt in diet is to_____.

1. 1. produce small amount of hydrochloric acid required for digestion
   2. Ease the process of cooking
   3. Increase the taste
   4. All of the above

The part of chloroplast where CO2 is fixed to manufacture sugar is_____.

1. 1. Stroma
   2. Grana
   3. Outer membrane
   4. Thylakoid

The energy currency of the cell is called _____.

1. 1. RNA
   2. DNA
   3. ATP
   4. ADP

The bond formed when two or more atoms complete their electron shells by sharing electrons is called_____.

1. 1. Ionic bond
   2. Covalent bond
   3. Electrovalent bond
   4. Hydrogen bond

Complete breakdown of glucose molecule takes place in which of the following?

1. 1. Aerobic respiration
   2. Alcoholic fermentation
   3. Lactic acid fermentation
   4. None of these

Immunization by vaccination was ?rst introduced by?

1. 1. Florey & Chain in 1975
   2. Fleming in 1945
   3. Edward Jenner in 1795
   4. Flore & Chain in 1795

Which of the following statements is incorrect about skeletal muscle fibers?

1. 1. They contain O2 storing molecules called hemoglobin
   2. They are 10 – 100 ?m in diameter & surrounded by sarcolemma
   3. Their cytoplasm contains high concentration of carbohydrates
   4. They are multinucleated.

How many vertebrae are present in vertebral column of man?

1. 1. 30 vertebrae
   2. 33 pairs of vertebrae
   3. 33 vertebrae
   4. 31 vertebrae

Which one is not found in fatty acids in acylglycerols_____.

1. 1. C-26
   2. C-6
   3. C-30
   4. C-25