The shape of a protein is determined by OA.
the lipid concentration in the immediate environment.
OB.
the type of cell in which the protein was synthesized.
OC.
the sequence of amino acids that compose the polypeptide.
OD.
all of these

answer: the correct option is d. enzyme

lactase and carbonic anhydrase are the examples of enzymes.

lactase is an enzyme, which is present in the small intestine of mammals. it in the digestion of the disaccharide, lactose ( milk sugar) by converting it into two monosachharide, which are glucose and galactose.

carbonic anhydrase is present in the red blood cells. this enzyme plays significant role in the transport of co₂. it in the conversion of co₂ and h₂o into carbonic acid, which is then dissociated into bicarbonate ions and hydrogen ions.

answer is d hope this

answer; ///progressive relaxation;