In heme synthesis in mammalian cells: 1. uroporphyrin III is the immediate precursor of coproporhyrin III. 2. delta-aminolevulinic acid is formed by the condensation of succinyl CoA and valine. 3. ferric iron is inserted into protoporphyrin IX prior to attachment to the globin molecule.
If the linear function f is given, the linear equation of the graph of this function is obtained by defining the variable y to be the functional value f(x), that is, setting y = f(x) = ax + b and suppressing the functional notation in the middle.
Definition of Linear Function. A function that can be graphically represented in the Cartesian coordinate plane by a straight line is called a Linear Function.A linear function is a first degree polynomial of the form, F(x) = m x + c, where m and c are constants and x is a real variable.The constant m is called slope and c is called y-intercept. Step 1: The graph of a linear function is a straight line. 2  Step 2: Graph 4 is a straight line. 3  Step 3: So, Graph 4 represents a linear function.