Question

Question 1 (1 point) Of the following, which type of molecule moves directly across a membrane at the slowest rate? Large polar molecules, such as glucose Proteins and other macromolecules Small, uncharged polar molecules, such as water lons, such as chloride (CI)

Answer 1

Answer:- Small unchanged polar molecules In such as water. Exeplanation Plasma membrane is semipermeable membrane that allow only specific substances to pass. The molecules that can easily pass plasma membrane are small molecules like' 02 and CO2 that are non-polan in nature The molecues that have small size and are not charge can also pass the membrane eg = H20. But the male of diffusion is slow. The Large molecules that are chcharged cannot pass the membrane éq- polas molecule! like glucose. Proteins and macromolecules have large size bence cannot pass membrane. cí a gre negatively charged hence they require carrier protein to pass membrane. Hence ci cannot pass directly SScanned with SamScanner