explain the most likely pathway for root cells to obtain energy, and identify the organelles involved.

Root cells obtain energy through the process of photosynthesis, where they convert sunlight into chemical energy in the form of glucose. These cells contain chloroplasts, the organelles responsible for carrying out photosynthesis.

During photosynthesis, chloroplasts use sunlight to convert carbon dioxide and water into glucose and oxygen. This process involves a series of complex reactions that take place in the thylakoid membranes and stroma of the chloroplast. The thylakoid membranes contain chlorophyll, the pigment that captures sunlight and initiates the light-dependent reactions. These reactions generate ATP and NADPH, which are used to fuel the Calvin cycle, a series of reactions that take place in the stroma of the chloroplast. In the Calvin cycle, carbon dioxide is fixed and converted into glucose.

Overall, root cells obtain energy through the process of photosynthesis, utilizing chloroplasts to capture sunlight and convert it into chemical energy in the form of glucose.