What is the recommended daily intake allowance for this vitamin?

Human Anatomy & Physiology (11th Edition)
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ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
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The question is as follows:

What is the recommended daily intake allowance for this vitamin?  Assume the person is between the ages of 20-30 years of age in good health.

It also says to look at this website for guidelines

The website is:

https://health.gov/our-work/food-nutrition/2015-2020-dietary-guidelines/guidelines/appendix-7/

### Structural Representations of Essential Vitamins

This image illustrates the chemical structures and 3D models of four essential vitamins: Vitamin C, Vitamin A, Niacin (Vitamin B₃), and Vitamin E. Each vitamin is represented by a molecular formula and a ball-and-stick model, providing insight into their structural composition.

#### a. Vitamin C
- **Chemical Structure**: Displays a cyclic structure with multiple hydroxyl (OH) groups, highlighting its nature as a water-soluble vitamin.
- **Ball-and-Stick Model**: The 3D model shows the spatial arrangement of the atoms, with red spheres representing oxygen, black spheres for carbon, and white for hydrogen.

#### b. Vitamin A
- **Chemical Structure**: Features a long hydrocarbon chain with conjugated double bonds and a terminal ring structure.
- **Ball-and-Stick Model**: Demonstrates the elongated chain and the positioning of atoms, with similar color coding as Vitamin C.

#### c. Niacin (Vitamin B₃)
- **Chemical Structure**: Consists of a pyridine ring with a carboxyl group, emphasized by its role in metabolic processes.
- **Ball-and-Stick Model**: Highlights the aromatic ring structure, with an additional blue sphere indicating the presence of nitrogen.

#### d. Vitamin E
- **Chemical Structure**: Composed of a chromanol ring with a long hydrocarbon tail, representing its lipid-soluble nature.
- **Ball-and-Stick Model**: Displays a bulkier tail compared to the head, signifying the hydrophobic characteristics of Vitamin E.

These visualizations are courtesy of © 2018 Pearson Education, Inc., serving as educational tools for understanding complex biochemical substances integral to human health.
Transcribed Image Text:### Structural Representations of Essential Vitamins This image illustrates the chemical structures and 3D models of four essential vitamins: Vitamin C, Vitamin A, Niacin (Vitamin B₃), and Vitamin E. Each vitamin is represented by a molecular formula and a ball-and-stick model, providing insight into their structural composition. #### a. Vitamin C - **Chemical Structure**: Displays a cyclic structure with multiple hydroxyl (OH) groups, highlighting its nature as a water-soluble vitamin. - **Ball-and-Stick Model**: The 3D model shows the spatial arrangement of the atoms, with red spheres representing oxygen, black spheres for carbon, and white for hydrogen. #### b. Vitamin A - **Chemical Structure**: Features a long hydrocarbon chain with conjugated double bonds and a terminal ring structure. - **Ball-and-Stick Model**: Demonstrates the elongated chain and the positioning of atoms, with similar color coding as Vitamin C. #### c. Niacin (Vitamin B₃) - **Chemical Structure**: Consists of a pyridine ring with a carboxyl group, emphasized by its role in metabolic processes. - **Ball-and-Stick Model**: Highlights the aromatic ring structure, with an additional blue sphere indicating the presence of nitrogen. #### d. Vitamin E - **Chemical Structure**: Composed of a chromanol ring with a long hydrocarbon tail, representing its lipid-soluble nature. - **Ball-and-Stick Model**: Displays a bulkier tail compared to the head, signifying the hydrophobic characteristics of Vitamin E. These visualizations are courtesy of © 2018 Pearson Education, Inc., serving as educational tools for understanding complex biochemical substances integral to human health.
Most vitamins can be classified as either as fat soluble, which results in their tendency to accumulate in the body (so that taking too much can be harmful), or water soluble, which results in their tendency to be quickly eliminated from the body in urine. Examine the structural formulas and space-filling models of these vitamins and determine the following for each:
Transcribed Image Text:Most vitamins can be classified as either as fat soluble, which results in their tendency to accumulate in the body (so that taking too much can be harmful), or water soluble, which results in their tendency to be quickly eliminated from the body in urine. Examine the structural formulas and space-filling models of these vitamins and determine the following for each:
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