INTRODUCTION TO MICROSCOPY CELL BIOLOGY
ENDOPLASMIC RETICULUM
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -All the cells contain the same ratio of rough and smooth endoplasmic reticulum. Explanation: Ribosomes are associated with the cytosolic space of rough endoplasmic reticulum hence they are more actively involved in protein synthesis.
Detailed explanation-2: -Both rough ER and smooth ER have the same types of membranes but they have different shapes. Rough ER looks like sheets or disks of bumpy membranes while smooth ER looks more like tubes. Rough ER is called rough because it has ribosomes attached to its surface.
Detailed explanation-3: -RER occurs in both animal and plant cells. The RER membrane is continuous with the nuclear envelope, which surrounds the cell nucleus. The RER is also located near the Golgi apparatus, which transports, modifies, and packages proteins for delivery to targeted destinations.
Detailed explanation-4: -The smooth endoplasmic reticulum, or smooth ER, is an organelle found in both animal cells and plant cells.