What is the benefit of substrate channeling? the pdh active site forms in the hydrophobic core of the complex instead of a surface‑exposed region. reaction intermediates move to sequential active sites faster than the diffusion constant. every intermediate or product made by the pdh complex enters the citric acid cycle as a substrate. the pdh complex sequesters excess substrate to use at later time. intermediates of a multistep reaction sequence do not dissociate from the enzyme complex.

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

The ozone molecule o3 has a permanent dipole moment of 1.8×10−30 cm. although the molecule is very slightly bent-which is why it has a dipole moment-it can be modeled as a uniform rod of length 2.5×10−10 m with the dipole moment perpendicular to the axis of the rod. suppose an ozone molecule is in a 8000 n/c uniform electric field. in equilibrium, the dipole moment is aligned with the electric field. but if the molecule is rotated by a small angle and released, it will oscillate back and forth in simple harmonic motion. what is the frequency f of oscillation?

What is the vapor pressure of a solution with a benzene to octane?