Diffusion Across a Cell Membrane. Diffusion is the movement of a substance across a membrane. Substances diffuse across cell membranes in a process known as passive transport. This means that the cell does not expend any energy in transporting substances across the cell membrane. Instead, substances move down their concentration gradient as a result of random thermal motion.
401k and profit sharing plans are both forms of retirement plans. They allow employees to make pre-tax contributions to an account where contributions and earnings are not taxed until distributed. Some 401k plans require an employer to make contributions to a plan.
tion, Partnership X is deemed to have elect-ed to amortize organizational expenses under section 709(b) in 2011. Therefore, Partnership X may deduct $5,000 and the portion of the remaining $36,000 that is allocable to July through December of 2011 ($36,000/180 x 6 = $1,200) in 2011, the taxable year in which Partnership X begins business.