During photosynthesis, chlorophyll molecules in chloroplasts absorb sunlight and transfer excited electrons to a carrier; thus, they act as

What is the role of fadh2 in cellular respiration

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.

Which was most likely an effect on society that resulted from improvements in blood handling during world war i and world war ii?