The absorption of vitamin B-6 is by ______ diffusion.Multiple choice question.facilitatedpassiveactive

Absorption of vitamin E is through _____.Multiple choice question.passive diffusionactive transport

Multiple Choice QuestionThe absorption of fluoride occurs rapidly in the stomach and small intestine via ____.Multiple choice question.active transportpinocytosisfacilitated diffusionpassive diffusion

What substance produced by the digestive system is necessary in order to absorb vitamin B-12?Multiple choice question.GastrinSalivary amylaseIntrinsic factorPepsin

Facilitated diffusion is considered passive transport.Group of answer choicesFalseTrue

55.Which is NOT true about facilitated diffusion?a.It requires energy.b.It requires a carrier.c.It requires a concentration gradient.