NEET BIOLOGY

Detailed explanation-1: -The answer is A) proteins. This is because amino acids are known as the building blocks of protein.

Detailed explanation-2: -Proteins are built as chains of amino acids, which then fold into unique three-dimensional shapes. Bonding within protein molecules helps stabilize their structure, and the final folded forms of proteins are well-adapted for their functions.

Detailed explanation-3: -Animal nutrition expert Donald Strombeck, DVM, notes that this value is high for proteins from meat, most meat by-products, eggs and dairy products. “Dogs digest these proteins efficiently and they provide amino acids in proportions suitable for tissue protein synthesis.

Detailed explanation-4: -The 9 essential amino acids are: histidine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan, and valine.

Detailed explanation-5: -A protein molecule is made from a long chain of these amino acids, each linked to its neighbor through a covalent peptide bond (Figure 3-1). Proteins are therefore also known as polypeptides. Each type of protein has a unique sequence of amino acids, exactly the same from one molecule to the next.