Agroup of students is trying to grow a kelp plant in a tank without any others animals. they use a temperature regulation system to keep the water temperature at about 12°c. they bury the holdfast below the soil that has been enriched with nutrients and place the plant near a window in direct sunlight. however, over a few weeks the kelp plant withers and dies. why did this happen?

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.