Answer:
Essential bonding's are developed in the amino acids leading to formation of DNA. During cellular interaction they also provide pathways for active transportation.
Step-by-step explanation:
Hydrogen bonding causes the folding of protein thereby stabilizing their structure and formation of DNA and essential bio products. These H+ bonds holds the double helix DNA molecule which zips and unzips during the cell division leading to the formation of cells with new genetic material. Also during cellular interaction and transfer of material through a permeable membrane, there is a proton oriented gated channel that causes active transport.
Hence, hydrogen bonds and van der Waals interactions are necessary for cells