LIFE SCIENCE

Detailed explanation-1: -The cytoskeleton is an important, complex, and dynamic cell component. It acts to organize and maintain the cell’s shape; anchors organelles in place; helps during endocytosis (the uptake of external materials by a cell); and moves parts of the cell in processes of growth and motility.

Detailed explanation-2: -The structure of protein sets the foundation for its interaction with other molecules in the body and, therefore, determines its function.

Detailed explanation-3: -Proteins serve as structural support, biochemical catalysts, hormones, enzymes, building blocks, and initiators of cellular death.

Detailed explanation-4: -As workhorses of the cell, proteins compose structural and motor elements in the cell, and they serve as the catalysts for virtually every biochemical reaction that occurs in living things.