Regarding rough and smooth endoplasmic reticulum (ER):Group of answer choicesthey are both involved in synthesis of lipidssmooth ER is lined with ribosomesthey are physically connectedrough ER stores calcium
Question
Regarding rough and smooth endoplasmic reticulum (ER):Group of answer choicesthey are both involved in synthesis of lipidssmooth ER is lined with ribosomesthey are physically connectedrough ER stores calcium
Solution
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They are both involved in synthesis of lipids: This is true. Both rough and smooth ER are involved in the synthesis of lipids. The smooth ER is more specialized for this task, but the rough ER can also synthesize lipids.
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Smooth ER is lined with ribosomes: This is false. The rough ER is lined with ribosomes, which is why it appears 'rough' under a microscope. The smooth ER does not have ribosomes on its surface.
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They are physically connected: This is true. The rough and smooth ER are part of the same system and are physically connected. They are essentially different parts of the same organelle.
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Rough ER stores calcium: This is false. It is the smooth ER that stores ions in solution that the cell may need at a later time, such as calcium. The rough ER is more involved with the production of proteins and lipids.
Similar Questions
The endoplasmic reticulum (ER) is a structure found in eukaryotic cells. It is composed of two parts - the SER and the RER. Which of the following best describes a difference between the RER and the SER. A The rough ER processes toxins, but the smooth ER does not. B The smooth ER is a site of protein synthesis, but the rough ER is not C The rough ER has ribosomes on its surface, but the smooth ER does not. D The smooth ER is part of the endomembrane system, but the rough ER is not.
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Rough endoplasmic reticulum appears "rough" because __________.View Available Hint(s)for Part Amany ribosomes stud the outside of the ER membranethe Golgi apparatus is associated with rough ER to produce proteinslysosomes are attached to the ERof the numerous proteins produced by the rough ER
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Which ONE of the following statements is NOT a feature of the endoplasmic reticulum (ER)?Question 13Select one:a.It contains folded layers of membraneb.It is the site where transcription of DNA into mRNA occursc.Parts of the ER are connected to ribosomes, the sites of protein synthesisd.The ER is involved in protein distribution for further processing after synthesis
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