BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Within the ribosome, the rRNA molecules direct the catalytic steps of protein synthesis-the stitching together of amino acids to make a protein molecule. In fact, rRNA is sometimes called a ribozyme or catalytic RNA to reflect this function.

Detailed explanation-2: -Answer and Explanation: Amino acids are joined together at the ribosome during protein synthesis. Ribosomes attach to mRNA molecules and read the genetic code.

Detailed explanation-3: -There are three places on the ribosome where tRNAs bind: the A, P, and E site. The A site accepts an incoming tRNA bound to an amino acid. The P site holds a tRNA that carries a growing polypeptide (the first amino acid added is methionine (Met)).