Which statement best describes a procedure for making a 25 percent solution of lemon juice for an experiment? a. add 15 ml of distilled water to 5 ml of pure lemon juice. b. add 5 ml of distilled water to 15 ml of pure lemon juice. c. add 4 ml of lemon juice to 20 ml of distilled water. d. add 20 ml of lemon juice to 4 ml of distilled water. it's a. add 15 ml of distilled water to 5 ml of pure lemon juice. apex

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.