A company is growing algae in big tanks to make fish food. However, the algae is not growing very quickly and thy suspect either phosphorus, nitrogen, or iron is limiting. What could the company of to figure out which nutrient is limiting? A. Add phosphorus to one tank, nitrogen to […]

Public health and the maintenance of the same is integral to any developed nation. To that end, in the United States, federal, state, and local agencies must work to establish guidelines, rules, and requirements that provide baselines to protect the health of the public at large. Using information from the […]

your friend is intrigued by a recent report of a new species of bacteria that used arsenic instead of phosphate within their DNA. this report spurs his curiosity about alternative life chemistries. he decides to test whether he can find a life from that utilizes selenium instead sulfur.a) briefly explain […]

QUESTION 1: Cell fractions and buffers (a) What factors determines the forces that a particle experience during centrifugation? (b) Name the techniques usually employed to obtain cell free extracts/”brake cells open”. (c) Indicate how mitochondria can be isolated by differential centrifugation. (d) Why is it important to know the pKa […]