D-All cells do not contain the same types of enzymes.
If your asking what is it called it’s called
transgenes
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.
A is your answer.
Water containing no salt is known as isotonic solution
