Myoglobin isolated from alligator's muscle is a monomeric protein. It has 3 time stronger affinity for oxygen than human myoglobin with p50 = 1.8 Torr. 1) Use Excell software to make a plot of alligator myoglobin oxygen saturation (Y) as a function of oxygen pressure. (Hint: use pressure values from 0 Torr to 20 Torr and equation Y = pO2/(po2+p50), more information about equation can be found on page 225.
2) At what oxygen pressure is the fractional saturation 75 %. Provide the plot from Excell software, label all axes as appropriate.

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You need to design a circuit that implements the functions in the following table: s0 s1 function0 0 a + 10 1 a – b1 0 a + b1 1 a – 1s0 and s1 are 1-bit control inputs to select the function of the circuit. inputs a and b are 4-bitnumbers in 2s complement form. the output is also a 4-bit number in 2s complement form. you are allowed to use only one ttl 7483 4-bit adder to implement all the functions. but anynumber of other components (except the adder) can be used. hint: design a combinational logic circuit to modify the input b and the “carry input” of theadder depending on the control inputs s0 and s1.important: lab grade will depend on the working of the circuit & will be checked of by your labinstructor.1. is the output valid for the following input combinations: a. s0 = 0, s1 = 0, a = 7, b = 3? b. s0 = 0, s1 = 1, a = 7, b = 3? c. s0 = 1, s1 = 0, a = -4, b = -5? d. s0 = 1, s1 = 1, a = -8, b = 6? 2. what is the range of inputs (for both a and b) that will produce the valid output for all the functions?

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