In a humoral response, the main function of a B-cell is to make antibodies against antigens. Which organelle would be well represented in an electron micrograph of a such a cell?
A
Mitochondria
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B
Peroxisomes
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C
Lysosomes
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D
Rough endoplasmic reticulum
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Solution
The correct option is B Rough endoplasmic reticulum Antibodies are proteins, usually consisting of heavy and light chains. Proteins are secreted by Rough Endoplasmic Reticulum, that are modified and packed in the Golgi. In case of micrograph for a cell that manufactures antibodies, should represent abundance of RER.
So, the correct answer is 'Rough endoplasmic reticulum'