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the Ras and MAP kinase pathway starts with the binding of a growth factor to a receptor. as a result, all of the following occur EXCEPT?
a. the tyrosine kinase of the receptor I activated.
b. the receptor undergoes auto phosphorylation
c. Grb2 is activated by binding to portions of the receptors that have phosphorylated tyrosyl residue.
d. Grb2 binds because it has a src homology 2 domain (SH2 domain)
e. Eventually, Ras, a G-protein is activated by binding to GMP
If an unknown forms a silver mirror in the Tollens test, forms a purple color in the Schiff test, produces no precipitate in the iodoform test, has a refractvie index of 1.5250, and forms a semicarbazone melting at 124-126 C
The reaction x = Y is first -order overall and first-order with respect to the reactant x. The result of doubling the initial concentration of X will be to
Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction
Calculate how many moles of nitrogen will be required to make 10.0 moles of NH 3 and calculate what is energy of each pulse If each pulse contains no of photons =1.20 x 10 18
Predict the products when cyclohexanol is heated in the presence of H+. Show both the organic product and the byproduct
The valence shell of the element X contains 2 electrons in a 5s subshell. Below that shell, element X has a partially filled 4d subshell. What type of element is X?
If 0.90 mole of MnO2 and 48.2 g of HCl react, which reagent will be used up first?
calculate the energy (in kJ) of a photon which has a wavelength of a mircowave with a wavelength of 2.84 cm
b) Determine the hybrid state of each C. c) Draw the molecule geometrically correctly showing its ?- and ?-bonds and the atomic orbitals used to form each bond.
The density of carbon in the form of diamonds is 3.51 g/cm^3. If you have a 40-carat spherical diamond, what is the diameter of the diamond in millimeters?
A solution of household bleach contains 5.25% sodium hypochlorite, NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water
A buffer is made by dissolving 0.037 mol of potassium fluoride in 135 mL of 0.0237M hydrofluoric acid. Assume no volume change when the salt is dissolved. Calculate the pH of the buffer.
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