<prompt> Transport mechanism which requires carrier protein but no energy -Simple diffusionFacilitated diffiisiunOsmosisActive transport  <response>: Ans. is b i.e., Facilitated diffusiun Types of transport across cell membrane Carrier protein involvedEnergy requiredConcentration gradientSimple diffusionNoNoAlong Down hillOsmosis Diffusion of H2ONoNoAlong Down hillFacilitated diffusionYesNoAlong Down hillActive transportYesYesAgainst Up hillExocytosisNoYesNA not applicableEndocytosis Pinocytosis Phagocytosis Receptor mediated endocytosisNoYesYesYesNANA 