Which statement about N-linked glycosylation is correct? N-linked oligosaccharides are attached to proteins one sugar at the time in the endoplasmicreticulum. N-linked sugars are attached to proteins as a 14 residue oligosaccharide during translation in the endoplasmic reticulum. N-linked sugars are attached to proteins as a 14 residue oligosaccharide during translation inthe cytoplasm. N-linked sugars are attached to proteins as a 14 residue oligosaccharide after translation inthe Golgi apparatus.

There are two types of glycosylation of protein – N Linked and O Linked In N-Linked glycosylation,…

Answered: Which statement about N-linked…

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter2: Cell Physiology

Section: Chapter Questions

Problem 11RE

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In addition to vitamin A (retinoic acid), which other fat-soluble vitamin has been shown to make lysosomal membranes more unstable and vulnerable to rupture (when the cytosol is acidic)? vitamin E (in the form of a-tocopheryl succinate) vitamin B12 (in the form of cyanocobalamin) vitamin C (in the form of ascorbic acid) vitamin B2 (in the form of riboflavin) vitamin B1 (in the form of thiamine)
Some cytosolic proteins are anchored to the cell membrane via covalent bonds between cysteine or serine residues and _________ within the inner leaflet of the plasma membrane. A. GPI anchors B. cholesterol molecules C. lauric acid groups D. myristic acid groups E. palmitic acid groups
An N-linked glycoprotein contains a glycan covalently linked to which specific amino acid in a protein? Asparagine Glutamine Threonine Serine
Which of the following are important factors in the folding of globular proteins in the cytosol? Select as many as apply. Non-polar side chains are normally found on the exterior of proteins Proteins are hydrophobic polymers The cytosol is an aqueous environment. Non-polar side chains tend to group together away from water Proteins are composed of nucleotides Proteins contain both polar and non-polar side chains Peptide bonds are very weak and easily broken
Which of these amino acids is NOT a common attachment point for sugars in glycoproteins? A) Gly b) Ser c) Thr d) Asn In I-cell disease defective proteins are mislabeled which should be delivered to which organelle? A) nucleus b) mitochondria c) rough endoplasmic reticulum d) lysosome A glycoprotein involved in red blood cell production is: a) hemagglutinin b) erythropoietin c) p-glycoprotein d) cytochrome c
Which of the following statements concerning complete protein hydrolysis is incorrect? Primary structures are preserved Tertiary and secondary structures are disrupted All peptide bonds are broken Water is a reactant in the process
Some proteins are shuttled back and forth between the nucleus and the cytoplasm. How do you think this is possible? (Hint: the protein must have 2 things)
Which of the following is not a lipid link that anchors membrane-associated proteins to the bilayer? Thioether-linked prenyl anchors. Ester-linked triacylglycerol anchors. Glycosyl phosphatidylinositol anchors. Thioester-linked fatty acyl anchors. Amide-linked myristoyl anchors.
. During the process of protein synthesis on a ribosome, when the large ribosomal subunit covalently attaches an amino acid to a growing polypeptide, what is the name of this newly formed covalent bond? the phosphodiester bond the peptide bond the aminoacyl bond the ether bond the glycosidic bond
Which of the following enzymes creates a covalent bond that links amino acids in a polypeptide? Protein disulfide isomerase Hsp70 Peptidyl-prolyl isomerase Calreticulin
Which of the following group is not used to control enzymatic activity by covalent modification? Phosphoryl group. Myristoyl group. Methyl group. ADP-ribose. UMP.
Choose any two words in the table below, then connect them with a complete idea. Repeat this process three times in total. monomer disaccharide glucose cell wall energy structure glycosidic bond isomer cell-to-cell communication For example: if the two words are ribosome and protein, then you could write: Ribosomes are connected to proteins because the ribosomes are the protein builders in the cell. Ribosomes are made of two parts or subunits. The larger of the 2 parts is where the ribosome can add on an amino acid to the growing protein chain. Practice good Organization skills by reviewing concepts and vocabulary from the whole Activity to include full details. Choose your best idea and share it with your classmates. Join The Discussion

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