The enzyme, ribulose 1,5 bis phosphate carboxylase (Rubisco), is:
A) one of the most abundant proteins in nature.
B) about 15% of the protein content of the chloroplast
C) a multisubunit enzyme
D) consistent with the endosymbiotic origin for organelles such as chloroplasts and mitochondria
E) all of these

Question

Quizplus · Accepted Answer

Rubisco is indeed one of the most abundant proteins in nature, constituting a significant portion of chloroplast protein content, functioning as a multisubunit enzyme, and its characteristics support the endosymbiotic theory for the origin of organelles like chloroplasts and mitochondria.

The Enzyme, Ribulose 1,5 Bis Phosphate Carboxylase (Rubisco), Is