Match the following:

(a)	Inhibitor of catalytic activity of succinate dehydrogenase	(i)	Ricin
(b)	Possess peptide bonds	(ii)	Malonate
(c)	Cell wall material in fungi	(iii)	Chitin
(d)	Secondary metabolite	(iv)	Collagen

Choose the correct option from the following:

	(a)	(b)	(c)	(d)
1.	(iii)	(i)	(iv)	(ii)
2.	(iii)	(iv)	(i)	(ii)
3.	(ii)	(iii)	(i)	(iv)
4.	(ii)	(iv)	(iii)	(i)

Bilaterally symmetrical and acoelomate animals are exemplified by:

1. Platyhelminthes

2. Aschelminthes

3. Annelida

4. Ctenophora

Presence of which of the following conditions in urine is indicative of Diabetes Mellitus:

1. Uremia and Renal Calculi

2. Ketonuria and Glycosuria

3. Renal Calculi and Hyperglycaemia

4. Uremia and Ketonuria

Ray florets have:

1.  Superior ovary

2.  Hypogynous ovary

3.  Half inferior ovary

4.  Inferior ovary 

Identify the substances having a glycosidic bond and peptide bond, respectively in their structure:

1.  Glycerol, trypsin

2.  Cellulose, lecithin

3.  Inulin, insulin

4.  Chitin, cholesterol 

Which of the following statements is not correct?

Some dividing cells exit the cell cycle and enter the vegetative inactive stage. This is called the quiescent stage $\left(G_0\right)$. This process occurs at the end of:

1.  $G_1$ $phase$

2.  S phase

3.  $G_2$ $phase$

4.  M phase 

Identify the correct statement with regard to $G_1$ phase (Gap 1) of interphase:

The QRS complex in a standard ECG represents:

1.  Depolarisation of auricles

2.  Depolarisation of ventricles

3. Repolarisation  of ventricles

4.  Repolarisation of auricles 

If the distance between two consecutive base pairs is 0.34 nm and the total number of base pairs of a DNA double helix in a typical mammalian cell is $6.6\times {10}^9$ bp, then the length of the DNA is approximately: