1. Cell membranes are based on lipid bilayer. Plasma membranes consist of a lipid bilayer with proteins embedded in the bilayer. The principle lipids are phospholipids. A phospholipid molecules has a hydrophilic head with a phosphate group as part of its structure and two hydrophobic tails.The hydrophobic tails consist of long hydrocarbon chains.. Cell membranes are based on lipid bilayer. Plasma membranes consist of a lipid bilayer with proteins embedded in the bilayer. The principle lipids are phospholipids. A phospholipid molecules has a hydrophilic head with a phosphate group as part of its structure and two hydrophobic tails.
higher dollar) of the applicable maximum per diem rate. However, subject to your agencyâs policy, a lesser amount may be authorized. Â§301-11.304 What if my expenses are less than the authorized amount? When authorized actual expense and your expenses are less than the locality per diem rate or the authorized amount, reimbursement is limited to the expenses incurred. Â§301-11.305 What if my actual expenses exceed the 300 percent ceiling?
If you have employees who travel away from home for business purposes, they may be eligible to be paid a per diem, or a daily rate to cover the expenses of traveling. Covered expenses include lodging, and meals and incidental expenses (M&IE).There are maximum dollar limits allowed per day: 1  As long as employees are given the maximum amount or lower, the per diem is not taxable, and the employee does not need to substantiate the actual expenses by turning in receipts. As long as employees are given the maximum amount or lower, the per diem is not taxable, and the employee does not need to substantiate the actual expenses by turning in receipts. 2  If the per diem allowance is over the maximum amount, any amount over the maximum amount is subject to payroll tax and substantiation.