LABORATORY REVIEW
DIFFUSION AND OSMOSIS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
Particles move in and out of the cell when the cell becomes full.
|
|
|
Particles move in and out of the cell at a constant rate.
|
|
|
Particles move from an area of high concentration to an area of low concentration.
|
|
|
Particles move in a way that keeps them as close to each other as possible.
|
Detailed explanation-1: -In simple diffusion, small noncharged molecules or lipid soluble molecules pass between the phospholipids to enter or leave the cell, moving from areas of high concentration to areas of low concentration (they move down their concentration gradient).
Detailed explanation-2: -Diffusion: Diffusion is the movement of particles from an area of higher concentration to lower concentration. The overall effect is to equalize concentration throughout the medium.
Detailed explanation-3: -Which statement best describes particle movement during simple diffusion? Particles move from an area of high concentration to an area of low concentration.
Detailed explanation-4: -Passive transport does not require energy input. An example of passive transport is diffusion, the movement of molecules from an area of high concentration to an area of low concentration. Carrier proteins and channel proteins are involved in facilitated diffusion.
Detailed explanation-5: -Diffusion is the movement of molecules from an area of high concentration of the molecules to an area with a lower concentration. For cell transport, diffusion is the movement of small molecules across the cell membrane.