Which Water-Soluble Vitamin Cannot Be Absorbed by the Intestinal Mucosa

question 128

Multiple Choice

Which water-soluble vitamin cannot be absorbed by the intestinal mucosa unless it has been bound to intrinsic factor?

• A) vitamin B₁₂
• B) vitamin C
• C) vitamin B₆
• D) vitamin D
• E) vitamin K

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Definitions:

Low Population Density

Refers to areas with few people living in them relative to their size, often measured as the number of individuals per unit area.

Reproductive Rate

The average number of offspring produced by an organism or population, influencing its ability to sustain or grow its numbers over time.

Extinct Species

Extinct species are those species of organisms that no longer exist on Earth, having completely disappeared from the biological diversity.

Extinct Rate

The rate at which species permanently disappear from Earth, often accelerated by human activities and environmental changes.