Polar molecules have trouble passing through the nonpolar part of the phospholipid bilayer. Ions require ion channels and is not as easy as those that simply just diffuse through the membrane. Ion channels might require energy, too... Not glucose because those are larger molecules.
Overtime is the amount of time someone works beyond normal working hours. Normal hours may be determined in several ways: 1  by custom (what is considered healthy or reasonable by society), 2  by practices of a given trade or profession, 3  by legislation,hus, an employee might work 48 hours in one week, and 32 hours the next week (assuming over 40 hours is overtime), and be paid an extra amount equivalent to 4 hours work (8 multiplied by 0.5).
Sometimes employers seek to avoid overtime by granting employees compensatory time in lieu of cash for overtime hours worked, or averaging hours from work period to work period, or similar gimmicks. Many such attempts are not permitted under the FLSA.f the medical employer chooses, it may pay these employees FLSA overtime for actual time worked in excess of 8 hours per day, or 80 hours every two weeks (whichever is better for the employee), instead of for hours worked in excess of 40 hours per work week.