Answer:
Amino acid sequence and local low energy chemical bond between atom in both the polypeptides back bone and in animo acid side chain's
Explanation:
Protein structure plays key role in its function. If a protein loses it Shape at any structure level , it may no be functional
<span>Chemicals are used for the communication between two cells whether the communication is from surface to surface or direct or through receptors. So the chemicals that send instructions to cells are A, T, C, and G in DNA which is four nucleotide bases called as adenine, thymine, cytosine and guanine.</span>
Answer:
Plant cells have cell walls.
Explanation:
While both plant cells and animal cells have cell membranes, only plant cells have a cell wall, the hard outer shell of the cell.
