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10 Jun 2019

When a protein is synthesized into the ER:

A) A ribosome moves inside the ER

B) The protein will eventually end up in the cytosol

C) The mRNA moves inside the ER

D) Translation will first begin in the cytosol

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Related questions

1) Where are proteins in the mitochondrion synthesized?

(a)in the cytosol

(b)in the mitochodrion

(c)on the endoplasmic reticulum

(d)in both the cytosol and the mitochondrion

2) Select the incorrect association between thecomponents involved with ER transport with the appropriate cellularlocation.

(a)SRP receptor/ ER membrane

(b)active site of signal peptidase/ cytosol

(c)Protein translocator / ER membrane

(d)signal-recognition particle/ cytosol

28 Which of the following statement is false?

(a) Not all peroxisomal proteins are synthesized on the ER.

(b) Enzyme that transfers sugar chain from lipid to transmembrane protein on ER is expected to have ER retention signals.

(c) Signal recognition particle (SRP) for ER signal sequence is in cytosol.

(d) SRP receptor is located at ER membrane and its SRP binding site faced to ER lumen.

#1 Which of the following must occur when a position on the ER isnot available for a ribosome, which is translating a secretoryprotein

A The ribosome will temporarily dock on the smooth ER
B The ribosome will disassemble until there is an availableposition
C The ribosime will undergo translational arrest
D The ribosome will complete the synthesis of the protein and dropit into the cytosol as a domesticated protein

#2 N-glycosylation occurs in which organelle?

A RER
B SER
C Golgi Apparatus
D All of the above

#3 A protein with two stop-transfer sequences along with aLys-Lys-Met-Ser sequence will end up where in the cell?

A Plasma Membrane
B ER Membrane
C The ER lumen
D The lysosome

#4 Which does NOT happen during co-translation of secretoryproteins?

A Cleaving of protein
B Glycosylation of proteins
C Trimming of protein
D Protein folding

#5 Which is the CORRECT order the translational complexforms?

A mRNA---> large ribosome ---> small ribosome --->tRNA
B Large ribosome ---> mRNA ---> small ribosome --->tRNA
C Small ribosome ---> large ribosome ---> mRNA --->tRNA
D mRNA ---> small ribosome ---> large ribosome --->tRNA

#6 Which component of the cytoskeleton consist of rope-likefibrills that provides the cell mechanical strength when subjectedto physical stress, including neurons, muscle cells, and theepithelial cells that line the body's cavities?

A Microtubules
B Microfiliaments
C Intermediate Filiaments
D Lamins

#7 What type of glycosylation occurs in the Golgi?

A Glycosylation of Asparagine
B Glycosylation of Serine
C Glycosylationof Asp and Ser
D Glycosylation of Nucleic Acids

#8 Ebony was examining a cell's organelle which was almost as largeas the cell. She discovered that the pH was 4.6. Which of thefollowing organelles was she studying?

A Nucleus
B Endosome
C Vacuole
D Lysosome

#9 Which is NOT a function of the smooth ER?

A Synthesis of carcinogens
B Synthesis of lipids, carbohydrates, and nucleic acids
C Detoxification
D Release of calcium and glucose


#10 Which signal sequence is NOT part of the final protein?

A Glycosylation
B Stop-transfer
C Leader sequence
D ER retention

#12 Detoxification of charred foods oftentimes form carcinogensfrom:

A acid hydrolases
B benoapadines
C benzopyrenes
D free radicals

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