Iron is an example of a nutrient that enters cells using simple diffusion. a membrane transport protein. a pump. endocytosis.

Type of transport that enables a cell to acquire bulk quantities of specific substances.Group of answer choicesexocytosisreceptor-mediated endocytosisendocytosisfacilitated diffusionpinocytosisplasmolysisphagocytosis

The transport of iron out of the intestinal cell for incorporation into serum transferrin is aided by the proteinMultiple Choiceinsulin.myoglobin.ferroportin.thyroxine.

Endocytosis is considered active transport.Group of answer choicesFalseTrue

The type of membrane transport that involves the ingestion of solid particles by vesicle formation is __________.Multiple Choiceendocytosisexocytosisactive transportfacilitated diffusionsimple diffusion

Oxygen moves from the air in the lungs (high concentration) into the circulating blood (low concentration) without the aid of a transport protein. This is an example of which process?Group of answer choicesReceptor-mediated endocytosisFacilitated diffusionPinocytosisSimple diffusionOsmosis