When a peptide hormone reaches its target cell, which event happens next? a. it binds itself to the receptors present on the surface of the cell membrane, which activates the enzymes present inside cell. b. it passes through the cell membrane and attaches itself to a receptor protein present in the cytoplasm. c. it passes on the signal to the secondary messengers inside the cell, which activate the receptors on the cell membrane.

Blood has traveled from the heart to the toes. which describes the next step of the circulation process?

What best describes the structure of the declaration of independence?

The empty trna moves off and picks up another matching amino acid from the cytoplasm in the cell. the anticodon of the trna, with its attached amino acid, pairs to the codon of the mrna, which is attached to a ribosome. this sequence is repeated until the ribosome reaches a stop codon on the mrna, which signals the end of protein synthesis. the ribosome forms a peptide bond between the amino acids, and an amino acid chain begins to form. when a second trna with its specific amino acid pairs to the next codon in sequence, the attached amino acid breaks from the first trna and is bonded to the amino acid of the second trna.