Which of the following processes and organelle(s) accounts for the replacement of lipids and proteins lost from the plasma membrane?Group of answer choicesFlip-flop of phospholipids from one side of the plasma membrane to the other and the Golgi apparatusReceptor-mediated endocytosis and smooth ER and Golgi apparatusActive transport and the rough endoplasmic reticulumEndocytosis and GolgiExocytosis and smooth and rough ERNext
Question
Which of the following processes and organelle(s) accounts for the replacement of lipids and proteins lost from the plasma membrane?Group of answer choicesFlip-flop of phospholipids from one side of the plasma membrane to the other and the Golgi apparatusReceptor-mediated endocytosis and smooth ER and Golgi apparatusActive transport and the rough endoplasmic reticulumEndocytosis and GolgiExocytosis and smooth and rough ERNext
Solution
The process and organelle that account for the replacement of lipids and proteins lost from the plasma membrane are Exocytosis and smooth and rough ER.
Here's why:
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Exocytosis: This is a process where cells transport molecules (such as proteins) out of the cell by discharging them in vesicles. In this context, it helps to replace proteins lost from the plasma membrane.
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Smooth and Rough ER: The endoplasmic reticulum (ER) is an organelle that plays an important role in the production of proteins and lipids. The rough ER does so by having ribosomes on its surface where protein synthesis occurs, while the smooth ER synthesizes lipids and steroids, metabolizes carbohydrates and steroids, and regulates calcium concentration, drug detoxification, and attachment of receptors on cell membrane proteins. These synthesized proteins and lipids are then transported to the plasma membrane to replace those that were lost.
Similar Questions
The difference in lipid and protein composition between the membranes of the endomembrane system is largely determined byGroup of answer choicesthe physical separation of most membranes from each other.the function of the Golgi apparatus in sorting membrane components.the modification of the membrane components once they reach their final destination.the transportation of membrane among the endomembrane system by small membrane vesicles.the synthesis of lipids and proteins in each of the organelles of the endomembrane system.
Transport vesicles move proteins from the endoplasmic reticulum to what other organelle?smooth endoplasmic reticulumGolgi apparatusmitochondrianucleus
Identify the organelle responsible for processing, modifying, and transporting lipids and proteins.Group of answer choicesStructure GStructure AStructure FStructure D
The __________ endoplasmic reticulum manufactures lipids and carbohydrates, whereas the __________ endoplasmic reticulum assists with the synthesis of proteins, which it sends to the Golgi apparatus.Multiple Choicesmooth; curvedcurved; smoothsmooth; roughrough; smooth
Which cell feature processes proteins?A: endoplasmic reticulumB: chloroplastsC: golgi apparatus
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