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?
The Internal Revenue Service defines per diem as the allowance an employer pays to employees for travel-and meal-related expenses when traveling on business. Employers provide a per diem in lieu of paying actual travel expenses.ecause the IRS limits your deduction to the amount the federal government usually reimburses its employees for travel expenses, confirm the current federal per diem rates. In addition, as with all tax-related documents, save your receipts in case of an IRS audit.