BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Proteins can be divided into two categories: fibrous, which tend to be insoluble in water, and globular, which are more soluble in water. A protein may have up to four levels of structure. The primary structure consists of the specific amino acid sequence.

Detailed explanation-2: -Fibrous proteins are usually static molecules and play important structural roles in the anatomy and physiology of vertebrates, providing external protection, support, shape, and form. They are water insoluble and are typically built upon a single, repetitive structure assembled into cables or threads.

Detailed explanation-3: -Hydrophilic amino acid side chains lie on the surface of the globular proteins exposed to the water. Consequently, globular proteins are usually very soluble in aqueous solutions.

Detailed explanation-4: -Globular proteins are spherical in shape and usually water soluble. Examples of globular proteins include haemoglobin, insulin and many enzymes in the body.

Detailed explanation-5: -Two general kinds of proteins are found in cells, water soluble and water insoluble proteins. Water soluble proteins, which include enzymes and transport proteins, are found free in cellular compartments such as the cytoplasm, nucleus, or endoplasmic reticulum.