What is the answer to #13? BCH 369-Dr. Grabner Spring 2018 PCs: Molly and Gracia

Question

What is the answer to #13? BCH 369-Dr. Grabner Spring 2018 PCs: Molly and Gracia 13. In athe carbohydrate is responsible for most of the mass; in a the protein is responsible for most of the mass. A) glycoprotein; proteoglycan B) proteoglycan; glycoprotein C) N-linked glycoprotein; O-linked glycoprotein D) O-linked glycoprotein; N-linked glycoprotein E) N-linked proteoglycan; O-linked glycoprotein proteoglycan 14. Haworth projection formulas A) are representations of the cyclic form of sugars B) can show the distinction between the a and B anomers C) both of the above D) neither of the above 15. Deoxyribose is best described as a(n): A) Oxidized form of ribose B) reduced pyranose

Explanation / Answer

Both glycoproteins and proteoglycans contain proteins and carbohydrate units.

The carbohydrate content of proteoglycans (10-15%) is far less than glycoproteins is (50-60%).

Proteoglycans have long chains with disaccharide as repeating structures. Glycoproteins have short, highly branched glycan chains with no repeating unit.

Glycoproteins are found mainly in cellular membrane of cells while proteoglycans are found mainly in connective tissues

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