INTRODUCTION
CELL ORGANELLES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Rough er
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smooth er
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mitochondria
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ribosome
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Detailed explanation-1: -So, the correct answer is ‘Endoplasmic reticulum’.
Detailed explanation-2: -Newly made proteins leave the ribosome and are inserted into spaces of the endoplasmic reticulum where they are modified and shaped into a functioning protein.
Detailed explanation-3: -The endoplasmic reticulum (ER) plays a key role in the modification of proteins and the synthesis of lipids. It consists of a network of membranous tubules and flattened sacs.
Detailed explanation-4: -The ribosome that is synthesizing the protein is directly attached to the ER membrane. These membrane-bound ribosomes coat the surface of the ER, creating regions termed rough endoplasmic reticulum, or rough ER (Figure 12-36A).
Detailed explanation-5: -When newly formed proteins leave the rough endoplasmic reticulum, they are transported to this organelle, where the proteins are sorted and packaged. 15 7. This part of the cell manufactures the ribosomal subunits.