Level 2

In ATP, the high energy bond is the one which links

Reducing sugars are

The bending and folding of a protein molecule would produce a

When a protein loses its normal three dimensional configuration, it is said to be:

In the human body, steroid molecules can act as

Name the elements, which occur in nucleic acids.

Proteins may denature when

Proteins act as
$1.$ Catalysts
$2.$ Building blocks of $\mathrm{DNA}$
$3.$ Structural components of cell membrane
$4.$ Main source of energy in cellular respiration