Match each item in Column I with one item in Column II and chose your answer from the codes given below:

Column I		Column II
(a)	Alkaloid	(i)	Abrin
(b)	Toxin	(ii)	Morphine
(c)	Lectin	(iii)	Vinblastin
(d)	Drug	(iv)	Concanavalin A

 

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

The given compound:

1. is a storage product in archaea
2. is the source of energy in fungi
3. is present in the cell walls of gram negative bacteria
4. is a structural component of plasma membrane

Inulin is a:
1. Disaccharide containing two galactose
2. Disaccharide containing fructose and galactose
3. Polymer of fructose
4. Polysaccharide used in microbial culture

The first amino acid in the primary structure of a protein is termed as:

Quaternary structure is seen in proteins that:
1. act as biochemical catalysts
2. are embedded within the plasma membrane
3. are assembly of more than one subunits
4. do not have any structural role in the cell

The double helix model of DNA by Watson and Crick exhibits its:

The strands of the DNA double helix are:

At each step of ascent, the helical strand of DNA turns

Almost all enzymes are:

In the absence of carbonic anhydrase in the human body, the reaction between carbon dioxide and water leading to the formation of carbonic acid: