Macromolecules

Evidence 3
Macromolecules

Proteins
Proteins are biochemical compounds consisting of one or more polypeptides  typically folded into a globular or fibrousform, facilitating a biological function.A polypeptide is a single linear polymer chain of amino acids bonded together by peptide bonds between the carboxyl and amino groups of adjacent amino acid residues.
Most proteins consist oflinear polymers built from series of up to 20 different L-α-amino acids. All proteinogenic amino acids possess common structural features, including an α-carbon to which an amino group, a carboxyl group, anda variable side chain are bonded.
To build and repair muscles, building structures, enzymes, antibodies, repair and maintenance ,and growth. Without protein synthesis, there would be no cell growthor maintenance. Without cells, there would be no life.

Nucleic acids
Nucleicacids are biological molecules essential for life, and include  DNA (deoxyribonucleic acid) and RNA (ribonucleic acid).Together with proteins, nucleic acids make up the most important macromolecules; each is found in abundance in all living things, where they function in encoding, transmitting and expressing geneticinformation.
Nucleic acids are the genetic material of all organisms, and they determine many of the features of an organism. There are two types of nucleic acids: DNA (deoxyribonucleic acid and RNA(ribonucleic acid). Both are made of long chains of subunits called nucleotides. 
DNA carries the 'instructions' required to assemble proteins from amino acids subunits using a generic code. It isaccurately passed from cell to cell during cell division. RNA plays a major role in the manufacture of proteins within cells. 

Carbohydrates
The term is most common in biochemistry, where it is asynonym of saccharide. The carbohydrates (saccharides) are divided into four chemical groupings: monosaccharides, disaccharides, oligosaccharides, and polysaccharides. In general, the monosaccharides...