Question

Match the following

$a$	Triglycerides	$1.$	Galactose
$b$	Lactose	$2.$	Glycerol
$c$	RNA	$3.$	Palmitic acid
$d$	$\beta$-pleats	$4.$	Uracil
$e$	Bee wax	$5.$	Secondary structure

• A. $a-4,b-1,c-5,d-2,e-3$
• B. $a-5,b-1,c-4,d-2,e-3$
• C. $a-3,b-1,c-4,d-5,e-2$
• D. $a-2,b-1,c-4,d-5,e-3$

Answer 1

The correct option is D $a-2,b-1,c-4,d-5,e-3$

Fat is stored reserve for the body which provides energy. These are triesters of glycerol. Glycerol has chemical formula of C${}_3$H${}_8$O${}_3$.

Lactose is a disaccharide formed by the glycosidic linkage between glucose and galactose. It can be broken to galactose and glucose by enzyme lactase.

The nitrogenous bases are purines and pyrimidines. The purines are adenine and guanine. The pyrimidines are thymine and cytosine. In RNA, the thymine is replaced by uracil.

β-pleated secondary protein structure is formed by the parallel or anti parallel polypeptide chain linked together by H - bonds. It is stabilized by the hydrogen bonds formed between NH and Co of the adjacent polypeptide chain. The distance between the adjacent amino acids are 3.5 A${}^o$.

Triacontanyl palmitate is important component of bees wax.

So, the correct answer is option D.