It modifies, packages,and sorts proteins that will be secreted into the cell. So synthesis of proteins.
The correct option is D.
Parietal cells are the epithelial cells which secrete hydrochloric acid and intrinsic factors. The cells are located in the gastric glands which are found in the linings of the walls of the stomach. The hydrochloric acid produced by the parietal cells helps in the conversion of the enzyme pepsinogen to pepsin during the digestion process.
When a homozygous red-eyed female was crossed with the white-eyed male (w+w+ × wY), the resulting F1 females were w+w and the F1 males were w+ Y. Crossing the F1 males and F1 females would yield these results:
<span>All the F2 females would have red eyes, although some would be homozygous (w+w+ ) and others would be heterozygous (w+w). </span>
<span>Half the F2 males would have red eyes (w+ Y), and half would have white eyes (wY).</span>
By osmosis through a partially permeable membrane
