BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Messenger proteins, such as some types of hormones, transmit signals to coordinate biological processes between different cells, tissues, and organs. These proteins provide structure and support for cells.

Detailed explanation-2: -Proteins serve as structural support, biochemical catalysts, hormones, enzymes, building blocks, and initiators of cellular death. Proteins can be further defined by their four structural levels: primary, secondary, tertiary, and quaternary.

Detailed explanation-3: -Structural proteins are a category of proteins responsible for functions ranging from cell shape and movement to providing support to major structures such as bones, cartilage, hair, and muscles. This group includes proteins such as collagen, actin, myosin, and keratin.

Detailed explanation-4: -Myosin, collagen and keratin are all examples of structural proteins. Myosin is the major constituent of muscles, collagen is majorly present in connective tissue, and keratin is an integral part of hair and outer layers of skin.