Match the following terms and definitions. 1. assimilation
process that involves the second step in the chemical breakdown of glucose; converting pyruvic acid into carbon dioxide
2. cellular respiration
occurring in the presence of oxygen
3. Krebs cycle
a series of chemical reactions that break down sugars and produce energy
4. electron transport chain
occurring in the absence of oxygen
5. aerobic
process that involves the third step in the chemical breakdown of glucose; transferring electrons to form ATP
6. anaerobic

it would lead to upper respiratory infections and pneumonia.

the answer is c.mitochondria. glad to .

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.