<prompt> True about facilitated diffusion-ActiveRequires carrierRequires ATPAgainst concentration gradient  <response>: Ans. is b i.e., Requires carrier Types of transport across cell membrane Carrier protein involvedEnergy requiredConcentration gradientSimple diffusionNoNoAlong Down hillOsmosis Diffusion of H2ONoNoAlong Down hillFacilitated diffusionYesNoAlong Down hillActive transportYesYesAgainst UphillExocytosisNoYesNA not applicableEndocytosis Pinocytosis PhagocytosisNoYesNA Receptor mediated endocytosisYesYesNA 