C. Scientists discovered that bactoX will induce a luminescence response in B. cubis when the concentration in a sample reaches 8.20 x 10-12 M. How many molecules of bactoX must be present in solution to initiate luminescence in a 2.0 µL sample? How many individual bacteria cells does this represent? The number of bactoX molecules per cell is given in part A. molecules: molecules cells: cells D. What volume, in nanoliters, would the bacteria cells in part C occupy if tightly packed? Assume that there is no space between the cells. volume: nL

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Nutrition and diet

We are involved in several daily activities. These actions need a significant quantity of energy. The food we eat provides this energy. Food is necessary for development, repair, and other living activities since it supplies energy. All of these are part of the living practice known as nutrition. Nutrition is the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease. Nutritionists employ concepts from molecular biology, biochemistry, and genetics to understand how nutrients affect the human body. Nutrition also looks at how people can use their diet to reduce their risk of disease, as well as what happens when they ingest too much or too little of a nutrient and how allergies emerge.