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Transport-membranes

QuestionAnswer
Is diffusion active or passive? Passive
Is diffusion up or down the concentration gradient? Down
What is crossing the membrane in diffusion? Small and uncharged particles
How do substances pass through the membrane in diffusion? Through the phospholipid bilayer
Is facilitated diffusion active or passive? Passive
Is facilitated diffusion up or down the concentration gradient? Down
In facilitated diffusion, what crossed the membrane? Large, uncharged particles or charged particles
In facilitated diffusion, how do the substances cross the membrane? Via carrier proteins if they are uncharged and channel proteins if they are charged.
Is osmosis active or passive? Passive
Is osmosis up or down the concentration gradient? Down
What crosses the membrane in osmosis? Water
How do the substances cross the membrane in osmosis? Through the phospholipid bilayer or aquaporins
Is active transport active or passive? Active
Is active transport up or down the concentration gradient? Up
What crosses the membrane in active transport? Specifc moleucules
How do the substances cross the membrane in active transport? Through carrier proteins
Is cytosis active or passive? Active
Is cytosis up or down the concentration gradient? Neither
What does cytosis transport? Large molecules
How do the substances cross the membrane in cytosis? Via vesicles
Created by: Golbs_Helmet
 

 



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