Question

refer to this diagram. which structure is responsible for bringing in the amino acids? 1 2 3 4

Explanation:

In the process of translation (protein synthesis), tRNA (transfer RNA) is responsible for bringing amino acids to the ribosome. In the diagram, structure 2 is tRNA. Structure 1 is the ribosome (site of protein synthesis), structure 3 is the polypeptide chain (growing chain of amino acids), and structure 4 is mRNA (messenger RNA, which provides the template for protein synthesis).

Answer:

2