Glucose, the most important
source of energy for mammals,  is obtained by the digestion of starch Monosaccharides
are held together by glycosidic linkages to form disaccharides or polysaccharides Proteins are the polymers of about twenty different aaaaa-amino acids which are
linked by peptide bonds Ten amino acids are called essential amino acids because
they cannot be synthesised by our body, hence must be provided through diet