If you could magnify the surface of a leaf to see it up close, what type of structures do you think you might see that could help explain how gases (like carbon dioxide, oxygen, or water vapor) get into and out of the leaves of the plant?

a. the production of carbon dioxide through the process of photosynthesis

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ok yes, but what is the question? as soon as you ask the actual question i will answer it. : )

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.