Multiple Choice
What are the names of the three sites where tRNA molecules bind to the ribosome during translation?
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3. Energy & Cell Processes
Introduction to Translation
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Which of the following types of proteins is translated in the rough endoplasmic reticulum?
A
Nuclear proteins
B
Cytosolic proteins
C
Mitochondrial proteins
D
Secretory proteins
Verified step by step guidance1
Understand the role of the rough endoplasmic reticulum (RER): The RER is involved in the synthesis of proteins that are either secreted from the cell, incorporated into the cell's plasma membrane, or sent to an organelle called the lysosome.
Identify the types of proteins synthesized in the RER: Secretory proteins, membrane proteins, and lysosomal proteins are typically synthesized in the RER.
Differentiate between the types of proteins: Nuclear, cytosolic, and mitochondrial proteins are generally synthesized in the cytosol and not in the RER.
Recognize the process of translation in the RER: Proteins destined for secretion are translated by ribosomes bound to the RER, where they enter the lumen of the RER for folding and modification.
Conclude that secretory proteins are translated in the RER: Based on the functions and processes associated with the RER, secretory proteins are the type of proteins translated in this organelle.
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