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.
DDT is not leviable on deemed dividend u/s. 2(22)(e). As a result, deemed dividend u/s. 2 (22) (e) is taxable in the hands of share holder. Deemed dividend u/ss. 2(22)(a) to (d) is exempt in hands of shareholder u/s. 10 (34).