What Is a Micronutrient

question 91

Multiple Choice

What is a micronutrient?

• A) an element required at only certain times during your life
• B) an essential element needed in quantities less than 10 g/day
• C) an essential element needed in quantities less than 100 mg/day
• D) a nonessential element, useful in small quantities
• E) nutrients needed in large quantities

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Definitions:

Active Transport

Molecules traversing a cell's membrane from regions of low concentration to regions of high concentration, a process that requires energy expenditure.

Cellular Clock

A mechanism inherent in cells that regulates their cycles of activity and division, influencing aging and cell death.

Death Genes

Genes involved in the regulation of programmed cell death or apoptosis, ensuring the proper development and functioning of organisms.

Differentiation

Differentiation is the process by which unspecialized cells become specialized into one of the many cell types that make up the body, including its various organs and tissues.