Complete Exam Guide Subject-wise practice platform
Protein Synthesis · Botany

What is the role of the 'Signal Peptide' in plant protein synthesis?

  1. To act as a stop codon that halts translation
  2. To direct the protein to a specific organelle or the ER
  3. To catalyze the formation of the mRNA 5' cap structure
  4. To protect the mRNA molecule from enzymatic degradation
Show answer and explanation

Correct answer: To direct the protein to a specific organelle or the ER

Signal peptides are short amino acid sequences at the N-terminus of a nascent protein. They act as 'address labels' that direct the protein to the secretory pathway or organelles like the mitochondria.

Difficulty: Medium Question 14 of 20

Practice all 20 Protein Synthesis questions

Keep practicing

More Protein Synthesis questions