LIFE SCIENCE

Detailed explanation-1: -Haemoglobin is made up of a simple protein, called globin and a non protein also known as haem.

Detailed explanation-2: -Answer and Explanation: Enzymes and antibodies are examples of proteins. Proteins are made from amino acids (that serve as the monomers and building blocks). There are 20 amino acids used to make proteins and polypeptides in the body.

Detailed explanation-3: -Proteins are present in all living organisms and include many essential biological compounds such as enzymes, hormones, and antibodies.

Detailed explanation-4: -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.