Question

which is the largest protein in the animal world and which is the largest protein in the biosphere?

Answer 1

Collagen is the most abundant protein in the animal kingdom, and it accounts for around 30% of the total protein content of the human body, providing strength, integrity, and structure.
RuBisCO

RuBisCO is very important in biology and ecology because it catalyzes the primary chemical reaction by which inorganic carbon permanently enters the biosphere. RuBisCO is also the most abundant protein in leaves and the most abundant protein on Earth.

Answer 2

Collagen is the largest protien in the animal world and which is the Largest protien in the biosphere. I hope it help you...!