Carbohydrates are commonly found as starch in plant storage organs. Which of the following five properties of starch (A-E) make it useful as a storage material?
 

(A)	Easily translocated
(B)	Chemically non-reactive
(C)	Easily digested by animals
(D)	Osmotically inactive
(E)	Synthesized during photosynthesis

The useful properties are:

1. (B) and (C)

2. (B) and (D)

3. (A), (C), and (E)

4. (A) and (E)

A competitive inhibitor of succinic dehydrogenase is:

The biological organisation starts with:

1. Submicroscopic molecular level

2. Cellular level

3. Organisms level

4. Atomic level

Which one of the following is a fat-soluble vitamin and its related deficiency disease?

1. Ascorbic acid - Scurvy

2. Retinol - Xerophthalmia

3. Cobalamine - Beri-Beri

4. Calciferol - Pellagra

Many elements are found in living organisms either free or in the form of compounds. Which one of the following is negligible in living organisms?

1. Silicon

2. Magnesium

3. Iron

4. Sodium

Which of the following represents uridylic acid?

1. Uracil + Ribose

2. Uridine + Phosphoric acid

3. Uracil + Phosphoric acid

4. Uridine + Ribose + Phosphoric acid

The statement "All biological catalysts are proteins" is no longer valid after the discovery of:

1. ribonuclease

2. ribozyme

3. RNAs

4. DNAs

Given below is the chemical formula of:

1. Palmitic acid

2. Glycerol

3. Galactose

4. Stearic acid

Jacob and Monod named some enzymes as allosteric whose activity is regulated by:

1. End product

2. Substrate

3. By product

4. Coenzyme

Apoenzyme is:

1. protein

2. carbohydrate

3. vitamin

4. amino acid