Question

1. Why is the sequence of monosaccharides important to the properties of a carbohydrate?

a. It determines how the biochemical folds into a three-dimensional structure.

b. It retains and transmits important biological information.   

c. It stores energy and provides covering to avoid water loss.

d. It stores energy and provides structural support for cells.

2. How do components of a DNA molecule influence its physical properties?

a. Deoxyribose and phosphate, linked by phosphodiester bonds, form repeating units to make up the backbone of DNA.  

b. Deoxyribose molecules, nitrogenous bases, and phosphate side chains are linked by glycosidic bonds to give DNA its helical shape.   

c. Nitrogenous bases and phosphate groups are linked by peptide bonds and then fold to give DNA its helical shape.

d. Nitrogenous bases have a phosphate bound to its 3' end and a deoxyribose bound to its 5' end to form the backbone of DNA.

Answer 1

(1)(a)It determines how the biochemical folds into a three dimensional structure.

The 3-D structure of any biochemical determines the functionality of the molecule.

(2)(a)Deoxyribose and phosphate,linked by phosphodiester bonds,form repeating units to makeup the backbone of DNA.

DNA strand has nitrogenous bases in side chain and form helical structure due to chemical interactions among two strands.