During the light dependent reactions of photosynthesis, the energy stored in ATP and NADPH molecules is used to form carbohydrates. a. False O b. True Phenol red is a pH indicator that changes color from pink-red to yellow-orange in the acidic environment O a. False O b. True Question 28 The nuclear envelope and nucleolus disappear. Distinct Not yet chromosomes become visible and are randomly arranged in the answered center of the cell in Marked out of 1 O a. Metaphase O b. Anaphase O c. None of the other choices is valid O d. Telophase O e. Prophase O f. Cytokinesis O g. Interphase P Flag question