Question

Pick the INCORRECT answers to the following question: (may be multiple answers)

A. ER bound ribosomes translate proteins destined to be secreted outside the cell

B. Free ribosomes translate many proteins in the cytoplasm

C. Ribosomes form a bridge between the nuclear membrane, where they capture mRNA molecules as the exit the nucleus, and the cell membrane, where they pump newly made proteins outside the cell

D. ER bound ribosomes translate proteins destined for localization in the membrane

E. Free ribosomes translate many proteins destined for localization in the membrane

Answer 1

- ER bound ribosomes translates the proteins secrreted out of the cell and those proteins which are inserted on the memrbrane of the cell, lysosome, ER, and Golgi-apparatus

so statements A. ER bound ribosomes translates proteins destined to be secreted outside the cell and D. ER bound ribosomes translate proteins destined for localization in the membrane are correct.

Free ribosomes in the cytosol translates mRNA to produce proteins in the cytosol. so statement

B. Free ribosomes translate many proteins in the cytoplasm

is correct.

ribosomes are found in the cytosol, and it start translating the mRNA which is transported out of the nucleus,

so the statements

C. Ribosomes form a bridge between the nuclear membrane, where they capture mRNA molecules as the exit the nucleus, and the cell membrane, where they pump newly made proteins outside the cell

and

E. Free ribosomes translate many proteins destined for localization in the membrane

are wrong

answers are

C. Ribosomes form a bridge between the nuclear membrane, where they capture mRNA molecules as the exit the nucleus, and the cell membrane, where they pump newly made proteins outside the cell

E. Free ribosomes translate many proteins destined for localization in the membrane