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Ribosomes, small structures found within cells, are primarily responsible for carrying out what essential cellular process?

ABreaking down and recycling old cell components
BSynthesizing proteins based on genetic instructions
CStoring the cell's genetic material
DProducing the cell's main energy supply

Explanation

Ribosomes are small cellular structures primarily responsible for synthesizing proteins, essentially reading genetic instructions carried by a molecule called messenger RNA and using those instructions to assemble specific sequences of amino acids into the many different proteins a cell needs to function properly. Ribosomes can be found either floating freely within a cell’s fluid interior or attached to another structure called the endoplasmic reticulum, depending on the specific type of protein being produced and where it’s ultimately needed within or outside the cell. Because proteins carry out such a wide range of essential functions within cells, ribosomes play a fundamentally important role in nearly every aspect of normal cell function. Explore more Everyday Science MCQs on mcqstutor to keep practicing.

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