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(02.04 MC)The contracting and relaxing of muscle is regulated by the amount of calcium present in the cells of muscle fibers. These cells must be able to move the calcium ions from areas with low concentrations to areas with high concentrations. What process would be necessary for this movement to occur?

(02.06 LC)Which statement correctly describes the process of photosynthesis?

(02.05 HC)A molecule of ATP contains adenine, ribose, and three phosphate groups. The bond between the last two phosphates is easily broken, resulting in a molecule of ADP and one phosphate group. If the bond between the second and third phosphate groups were more stable, what would be the most likely consequence?

(02.02 LC)Which of the following is true of modern cell theory?

(02.03 HC)Which of the following outcomes would be most likely if the membrane of a cell were no longer selectively permeable?

(02.06 LC)Which of the following correctly identifies the main function of photosynthesis?

(02.01 MC)One of water’s unique properties is that it has strong surface tension. What do you predict would happen if water had weak surface tension?

(02.01 MC)Which of the following best represents the relationship between the pH of water, vinegar, and ammonia?

(02.02 MC)Rudolf Virchow’s work resulted in the claim that all cells come from preexisting cells. How did this impact the creation of cell theory?

(03.04 MC)The fundamental explanation for the cause of cancer is that