lactose utilization. Use the legend below to draw the gene and its interaction with RNA polymerase, the repressor protein, and lactose when lactose is being digested. Refer to the images at the right to answer the following: Which immune response in shown: cell mediated or humoral? Explain how you know. What are the shaped molecules called? What is their role in the immune response? “Y” Describe how the shaped molecules relate to the graph displayed. “Y” One student described an action potential in a neuron by saying more gates open the concentration “As of sodium inside the cell increases and this causes even more gates to open.” Is this an example of a positive or negative feedback loop? Justify your reasoning. The figure to the right shows the feedback mechanism for regulating blood glucose. Is this a positive or negative feedback loop? Explain your answer.
lactose utilization. Use the legend below to draw the gene and its interaction with RNA polymerase, the repressor protein, and lactose when lactose is being digested. Refer to the images at the right to answer the following: Which immune response in shown: cell mediated or humoral? Explain how you know. What are the “Y” shaped molecules called? What is their role in the immune response? Describe how the “Y” shaped molecules relate to the graph displayed. One student described an action potential in a neuron by saying “As more gates open the concentration of sodium inside the cell increases and this causes even more gates to open.” Is this an example of a positive or negative feedback loop? Justify your reasoning. The figure to the right shows the feedback mechanism for regulating blood glucose. Is this a positive or negative feedback loop? Explain your answer.
ap_biology_exam_review_questions_only.docx