18. Which of the following functional groups could act as a A. hydroxyl group C.

Question

18. Which of the following functional groups could act as a A. hydroxyl group C. carbonyl group 19. (4) E buffering, agent in a solution? xplain how the properties of water makes it such an important B. amino acd C.methyl oup molecule for ife? 20. (4) Cite e two reasons why carbon is the base atom of organic molecules? re 21. Enantiomers have B. the same atoms A. the same formula but different structure. C. four different atoms or groups bonded to a carbon atom. D. many aunts 22. Of the following hydrocarbon functional groups, which one can function as an acid? B. hydroxyl A. amino C. sulfhydryl D. carboxyl 23. Of the following hydrocarbon functional groups, which one is the least reactive? B. hydroxyl D. carboxyl A. amino C. methyl 24. The formation of five or six sided carbohydrate rings depends on the position of the 2 functional group B. carbonyl D. hydroxy A. methyl C. carboxyl B. the type of monomers. D. polarity of the linkages. A. number of monomers linked together C. the arrangement of the glycosidic bonds. 25. The difference between starch and cellulose is in the 26. (4) What is the function for each of the following carbohydrates: chitin and glycogen?

Explanation / Answer

Chitin is the main ingredient in the exoskeletons of arthropods and crustaceans and is also in the cell walls of fungi.

Functions as scaffold material, supporting the cuticles of the epidermis and trachea as well as the peritrophic matrices lining the gut epithelium.

Glycogen's role in maintaining blood-glucose levels is especially important because glucose is virtually the only fuel used by the brain, except during prolonged starvation.

Moreover, the glucose from glycogen is readily mobilized and is therefore a good source of energy for sudden, strenuous activity.

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.