Multiple Choice
Which of the following is not a necessary component of translation?
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15. Gene Expression
Introduction to Translation
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Why is tRNA recycled for use in future translation processes?
A
tRNA molecules are stable and can be reused multiple times to save energy.
B
tRNA molecules are only used once and then degraded.
C
tRNA molecules are modified after each use, preventing reuse.
D
tRNA molecules are expensive to synthesize and need to be conserved.
Verified step by step guidance1
Understand the role of tRNA in translation: tRNA (transfer RNA) is responsible for bringing the correct amino acids to the ribosome during protein synthesis, matching its anticodon with the mRNA codon.
Recognize the stability of tRNA molecules: tRNA molecules are structurally stable, allowing them to withstand the cellular environment and be reused multiple times without degradation.
Consider the energy efficiency: Synthesizing new tRNA molecules for each translation process would require significant energy. Reusing tRNA conserves energy and resources within the cell.
Acknowledge the conservation of resources: Cells aim to be efficient in their use of resources. By recycling tRNA, cells can conserve nucleotides and other materials needed for tRNA synthesis.
Conclude with the biological advantage: The ability to recycle tRNA molecules allows cells to maintain efficient protein synthesis processes, supporting cellular function and growth without unnecessary expenditure of energy and resources.
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