$(1)$ Denaturation of proteins causes loss of secondary and tertiary structures of the protein.
$(2)$ Denaturation leads to the conversion of double strand of $DNA$ into single strand.
$(3)$ Denaturation affects primary structure which gets distorted.
$(1)$ Pentose $(2)$ Pentulose $(3)$ Hexulose $(4)$ Hexose
$(5)$ Aldose $(6)$ Ketose $(7)$ Pyranose $(8)$ Furanose