A protein is made on the rough ER of a cell. Which of the following is...
A protein is made on the rough ER of a cell. Which of the following is least likely to be true about this protein? A. Its signal peptide was removed. B. It began its synthesis in the cytoplasm. C. It is secreted from the cell. D. It is a cytoskeletal protein. E. It is made of amino acids linked by peptide bonds.
Homework Answers
Option d is correct. A protein is made on the rough ER of a cell. It is a cytoskeletal protein is least likely to be true about this protein
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A protein is made on the rough ER of a cell. Which of the
following is...
2. What will be the fate of a protein made at the rough ER, which has...
2. What will be the fate of a protein made at the rough ER, which has just one signal sequence at the N-terminus of the protein? • it will be a soluble protein • it will be a membrane protein
Which protein modification does NOT take place in the ER lumen? A. Polyubiquitylation &nbs
Which protein modification does NOT take place in the ER lumen? A. Polyubiquitylation B. N-linked glycosylation C. Cysteine bridge formation D. chaperone-mediated folding E. GPI anchoring 2. Which of these Eukaryotic proteins is least likely to exhibit an ER import sequence during translation? A. Glutathione B. CFTR C. Protein disulfide isomerase D. Acetylcholine receptor E. Na+-K+-ATPase 3. Which function is NOT attributed correctly to either smooth ER (SER) or rough ER (RER)?...
The rough endoplasmic reticulum (rough ER) is different from the smooth ER because A. the rough...
The rough endoplasmic reticulum (rough ER) is different from the smooth ER because A. the rough ER has lipids bound on its surface. B. aminoacyl-tRNA synthetases join amino acids to tRNAs on it. C. the rough ER has many ribosomes bound to it. D. smooth ER is coated by messenger RNAs. E. RNA polymerases are found all over the rough ER.
Predict where each mutant protein will go (as in, final destination), based on the set of...
Predict where each mutant protein will go (as in, final destination), based on the set of sorting sequences it has. Hint: think about what set of sorting sequences the normal, unmutated protein would have, then think about what sorting sequences the protein would have after the changes are made. Then, figure out where a protein with these new sorting sequences would end up. - A. B. C. D. ...
02 2. Which of the following statements about protein LO synthesis is true? a. Protein synthesis...
02 2. Which of the following statements about protein LO synthesis is true? a. Protein synthesis occurs in the nucleus of the cell. b. Messenger RNA carries amino acids to ribosomes for assembly into proteins. c. In the process of transcription, transfer RNA trans- d. None of the above is true fers its DNA onto a ribosome.
Order the following statements to correctly describe the route of secreted protein as it is synthesized...
Order the following statements to correctly describe the route of secreted protein as it is synthesized and secreted from a eukaryotic cell. A. The protein folds and undergoes modification within the rough ER. B. The protein travels within a membranous vesicle from the ER to the cis face of the Golgi apparatus. C. Translation begins on a ribosome. D. The protein travels toward the trans face of the Golgi, from which it is packaged into a secretory vesicle. E. The...
Which of the following scenarios will lead to the protein to be secreted out of the...
Which of the following scenarios will lead to the protein to be secreted out of the cell? Select one: a. A protein, normally localized to the Golgi apparatus, to which the Signaling peptide is deleted b. More than one of the describe scenarios will cause the protein to be secreted outside the cell c. A protein that is normally secreted, to which its Signaling peptide is deleted and replaced with a PLS d. A protein normally localized to the nucleus,...
Which of the following scenarios will lead to the protein to be secreted out of the...
Which of the following scenarios will lead to the protein to be secreted out of the cell? Select one: a. A protein that is normally secreted, to which its Signaling peptide is deleted and replaced with a PLS b. More than one of the describe scenarios will cause the protein to be secreted outside the cell c. A protein, normally localized to the Golgi apparatus, to which the Signaling peptide is deleted d. A protein that is normally localized to...
need help with 4i, ii, and iii please. 4) A cell line is transfected with a...
need help with 4i, ii, and iii please.
4) A cell line is transfected with a plasmid encoding either a secreted glycoprotein, X, or a variant of X that contains the amino acids KDEL at its C terminus, both of them under control of an inducible promoter. KDEL motifs are normally found on proteins located in the lumen of the ER. At 30 minutes after induction, cycloheximide, an inhibitor of protein synthesis, is added to the culture medium. At 30,...
Please answer all questions 2 After isolating the rough endoplasmic reticulum from the rest of the...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
02 2. Which of the following statements about protein LO synthesis is true? a. Protein synthesis occurs in the nucleus of the cell. b. Messenger RNA carries amino acids to ribosomes for assembly into proteins. c. In the process of transcription, transfer RNA trans- d. None of the above is true fers its DNA onto a ribosome.
Which of the following scenarios will lead to the protein to be secreted out of the cell? Select one: a. A protein, normally localized to the Golgi apparatus, to which the Signaling peptide is deleted b. More than one of the describe scenarios will cause the protein to be secreted outside the cell c. A protein that is normally secreted, to which its Signaling peptide is deleted and replaced with a PLS d. A protein normally localized to the nucleus,...
Which of the following scenarios will lead to the protein to be secreted out of the cell? Select one: a. A protein that is normally secreted, to which its Signaling peptide is deleted and replaced with a PLS b. More than one of the describe scenarios will cause the protein to be secreted outside the cell c. A protein, normally localized to the Golgi apparatus, to which the Signaling peptide is deleted d. A protein that is normally localized to...
need help with 4i, ii, and iii please.
4) A cell line is transfected with a plasmid encoding either a secreted glycoprotein, X, or a variant of X that contains the amino acids KDEL at its C terminus, both of them under control of an inducible promoter. KDEL motifs are normally found on proteins located in the lumen of the ER. At 30 minutes after induction, cycloheximide, an inhibitor of protein synthesis, is added to the culture medium. At 30,...
Please answer all questions
2 After isolating the rough endoplasmic reticulum from the rest of the cytoplasm, you purify the RNAS attached to it. Which of the following proteins do you expect the RNA from the rough endoplasmic reticulum to encode? (a) (c) soluble secreted proteins plasma membrane proteins ER membrane proteins all of the above (b) (d) -13 In which cellular location would you expect to find ribosomes translating MRNAS that encode ribosomal proteins? (a) (c) the nucleus in...
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