Which cell organelle containing millions of membrane-bound ribosomes is involved in the production, folding, quality control and dispatch of certain proteins?
Rough endoplasmic reticulum
The correct answer is Rough endoplasmic reticulum.
Disulfide Bond Formation: Enzymes in the RER lumen catalyze the formation of disulfide bonds, which help stabilize protein structure. Quality Control: The RER has mechanisms to ensure that only properly folded and assembled proteins are allowed to leave. Misfolded proteins are retained in the RER and may be targeted for degradation by the proteasome (ER-associated degradation or ERAD). Once processed and deemed correctly folded, proteins are transported from the RER to the Golgi apparatus via transport vesicles.
Important Questions from Cell Structure
Within the nucleus of eukaryotic cells, which of the following structures contains the tightly coiled genetic material?
Which of the following statements is/are correct?
I. Amoeba ingests its food with the help of pseudopodia.
II. Amoeba constantly changes its shape and position.
Which of the following cell organelles functions both as a passageway for intracellular transport and as a manufacturing surface?
The ribosomes are centres (sites) for.
Mitochondria are sites of _____
