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?

Find the well-known naturally occurring organometallic compound from the following options.

1. Vitamin B₁₂ coenzyme

2. Chlorophyll

3. Cytochrome P-450

4. Myoglobin

${\mathrm{VO}}_4^{3-}<mspace\; width="1em"></mspace>\mathrm{or}<mspace\; width="1em"></mspace>{\mathrm{PO}}_4^{3-}$ 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

Identify the condition that favours the release of O₂ from oxyhaemoglobin.

1. High pH and low CO₂ concentration

2. Low pH and low CO₂ concentration

3. High pH and high CO₂ concentration

4. Low pH and high concentration of CO₂ 

Nitrogenase enzyme contains

1. Fe-S protein

2. Mo-Fe-S protein

3. Both 1 and 2

4. None of the above

The biological role of Cytochrome P-450 is :

1. Nitrogen fixation

2. Oxidation of RH to ROH

3. Amide hydrolysis

4. Oxidation of amino acid.