The test that is not used for testing proteins is: 

1. Ninhydrin test

2. Millon's test

3. Molisch's test

4. Biuret test

Sucrose on hydrolysis gives:

1. $\mathrm{\alpha }$-D-Glucose + $\mathrm{\beta }$-D-Glucose

2. $\mathrm{\alpha }$-D-Glucose + $\mathrm{\beta }$-D-Fructose

3. $\mathrm{\alpha }$-D-Fructose + $\mathrm{\beta }$-D-Fructose

4. $\mathrm{\beta }$-D-Glucose + $\mathrm{\alpha }$-D-Fructose

Which of the following metal ions activates many enzymes participating in the oxidation of glucose to produce ATP and with Na it is also responsible for the transmission of nerve signals:

1. Copper

2. Calcium

3. Potassium

4. Iron

Which of the following is a basic amino acid?

1. Alanine

2. Tyrosine

3. Lysine

4. Serine 

An acid that acts as a vitamin is

Scurvy is caused due to the deficiency of vitamin:-

A well known naturally occuring organometallic compound is

1. vit B₁₂ coenzyme

2. chlorophyll

3. cytochrome P-450

4. myoglobin

${\mathrm{VO}}_4^{3-} \mathrm{or} {\mathrm{PO}}_4^{3-}$ which inhibits the operation of enzyme ATPase?

1. Both

2. Only ${\mathrm{PO}}_4^{3-}$

3. Only ${\mathrm{VO}}_4^{3-}$

4. None of these

The inside of a cell is a

1. reducing medium

2. oxidising medium

3. neutral medium

4. None of these

O₂ binding in Hb is

1. pH dependent

2. pH independent

3. O₂ binds at neutral pH

4. None of these