Vitamin B₁₂ is Absorbed in the _______Through ________

question 120

Multiple Choice

Vitamin B₁₂ is absorbed in the _______through ________.

• A) duodenum : cotransport with sodium
• B) jejunum : complexing with intrinsic factor
• C) duodenum : facilitated diffusion
• D) jejunum : facilitated diffusion
• E) ileum : complexing with intrinsic factor

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Definitions:

Potassium And Sodium Ion Channels

Protein channels located in cell membranes that allow potassium and sodium ions to move across, vital for processes such as nerve impulse transmission.

Falling Dominoes

Often used as a metaphor describing a situation where one event sets off a chain of similar events, much like standing dominoes falling in a sequence when the first one is knocked over.

Schwann Cells

A type of glial cell in the peripheral nervous system responsible for the formation of myelin sheaths around neuronal axons, aiding in faster signal transmission.

Oligodendroglia

Glial cells in the CNS that myelinate axons.