Question

10. How is the small intestine designed to absorb digested food?
11. What are the different ways in which glucose is oxidized to provide energy in various
organisms?
12. How is oxygen and carbon dioxide transported in human being?​

Answer 1

Answer:

10)The small intestine has millions of tiny finger-like projections called villi. These villi increase the surface area for more efficient food absorption. Within these villi, many blood vessels are present that absorb the digested food and carry it to the bloodstream. 11) Aerobic respiration : In this case pyruvate is broken down into water and carbon dioxide along with release of energy. It commonly occurs in mitochondria of cells. 2) Anaerobic respiration in yeast : In yeast cells during fermentation pyruvate is converted into ethanol and C02 in the absence of 02.

Answer 2

Explanation:

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