Antigens trigger antibody responses. Nucleic acids are complementary. Some plants flower in response to changes in day length. Some mammals may run or fight when frightened. For both of these examples, describe the physiological mechanisms involved in the response.
Membranes serve diverse functions in eukaryotic and prokaryotic cells.
One important role is to regulate the movement of materials into and out of cells. In addition, membranes in prokaryotes and in the mitochondria and chloroplasts of eukaryotes facilitate the synthesis of ATP through chemiosmosis. To earn credit a student needed to demonstrate an understanding of basic cell anatomy and physiology as they relate specifically to the structure and function to muscle contraction. Standards were established to follow the cellular activities pertinent to muscle contraction from the neuromuscular junction, through contraction, and returning to the non-contractive state. Points were also awarded if the student included information from the neuromuscular junction, demonstrated an exceptional understanding of chronological information from the neuromuscular junction, demonstrated an exceptional understanding of chronological or spatial relationships, or included an elaboration of special features specific to the process of muscle contraction.