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1. Which of the following tests cannot be used to distinguish between mediated a

ID: 887081 • Letter: 1

Question

1. Which of the following tests cannot be used to distinguish between mediated and non-mediated transport?

a. Determine the dependence of the concentration of the substance on its rate of transport.

b. Determine if the presence of a similar substance is inhibitory.

c. Determine the rate of transport at various temperatures.

d. Determine if the transport can be blocked by reagents that chemically modify proteins.

2. Calculate the chemical potential difference when intracellular [Na+] = 8.8 mM and extracellular [Na+] = 144 mM at 36.2°C. Give your answer in kJ/mol.

Explanation / Answer

Question1. c. Determine the rate of transport at various temperatures.

Question 2. chemical potential = 135.2 mM