Which one of the following types of tissues will have contractile proteins ?

Muscle tissue is specifically characterized by its ability to contract and shorten to produce movement. This contractile property is due to the presence of specialized contractile proteins, primarily actin and myosin. These proteins are organized into structural units called sarcomeres, where their interaction and sliding mechanism generate pulling forces [2]. While skeletal muscle is known for its striated appearance due to the regular arrangement of these proteins, actin and myosin are also present in smooth and cardiac muscle tissues. In contrast, nervous tissue is specialized for signal conduction, bone tissue provides structural support as a specialized connective tissue, and blood functions as a fluid connective tissue for transport [3]. Therefore, muscle tissue is the unique tissue type defined by the presence and functional use of contractile proteins for physical movement.

Sources

1. [2] https://www.sciencedirect.com/topics/agricultural-and-biological-sciences/muscle-tissue
2. [1] https://www.nature.com/scitable/topicpage/the-sliding-filament-theory-of-muscle-contraction-14567666/
3. [3] https://training.seer.cancer.gov/anatomy/cells_tissues_membranes/tissues/muscle.html