Which statement describes a feature of vitamin a nutrition?

What is a distinguishing feature of vitamin A in foods?

Vitamin A aids in the formation and maintenance of healthy teeth, bones, soft tissue, mucous membranes, and skin. Because it creates pigments in the retina of the eye, it is also known as retinol. Vitamin A improves vision, especially in dim light.

What is the purpose of the vitamin A nutrient?

Vitamin A (retinol, retinoic acid) is a nutrient that is necessary for eyesight, cell division, reproduction, and immunity. Antioxidant properties are also present in vitamin A.

In the bone health quizlet, which statement best represents vitamin A’s fundamental function?

Which of the following statements best reflects vitamin A’s primary role in bone health? It aids enzymes that breakdown certain areas of the bone, allowing remodeling to take place.

Which of the following statements best reflects vitamin A’s primary role in bone health?

Which of the following best characterizes vitamin A’s primary role in bone health? C. It aids enzymes that breakdown specific sections of the bone, allowing for remodeling.

What is the process of metabolizing vitamin A?

Vitamin A undergoes first-order hepatic metabolism and is eliminated in the stools and urine. In the small intestine wall, beta-carotene is converted to retinol. Retinol is broken down into retinoic acid, which is then eliminated in the bile and feces.

What distinguishes the vitamin D quizlet?

Retina is a type of retina. Vitamin D’s primary purpose is to aid calcium and phosphorus intake as well as calcium mobilization from bone. Vitamin E in foods has which of the following properties?

What are vitamin A’s five main functions?

Eye health, vision, immunological function, cell growth, reproduction, and embryonic development all require vitamin A.

What is the origin of the name vitamin A?

Retinol is a form of vitamin A. Carotene molecules (found in egg yolk, butter, and cream, for example) are transformed to vitamin A by the body over time (retinol).

What role does vitamin B play in our bodies?

B vitamins are essential for maintaining excellent health and happiness. B vitamins have a direct impact on your energy levels, brain function, and cell metabolism because they are the building blocks of a healthy body. Vitamin B complex aids in the prevention of infections as well as the support and promotion of cell health.

Which of the following statements best reflects vitamin A’s major role in maintaining vision?

Which of the following is a major function of vitamin A in eye health? It aids in the maintenance of a clear, healthy cornea.

Why is vitamin A deficiency linked to protein deficiency?

Why does a person’s vitamin A status rely on their protein level? To transport the vitamin throughout the body, enough protein is required to make retinol-binding protein.

Which of the following assertions about vitamin’s role in vision is correct?

Which of the following statements best illustrates the role of vitamin A in vision? The visual cortex is protected by retinol from teratogenic substances. Which region of the eye contains billions of vitamin A molecules?

What are vitamin A’s metabolites?

Abstract. Vitamin A (retinol) is consumed as retinyl esters or carotenoids, and it is converted into active chemicals like 11-cis-retinal, which is vital for vision, and all-trans-retinoic acid, which is the principal mediator of vitamin A’s biological effects.

Which of the following best describes vitamin E’s function?

Vitamin E is a fat-soluble nutrient that can be found in a wide variety of foods. It works as an antioxidant in the body, helping to protect cells from free radical damage. When our bodies turn the food we eat into energy, free radicals are created.

In the body, where is vitamin A metabolized?

The liver is the body’s primary location for retinoid metabolism and storage [3,4,5,6].

How is vitamin A absorbed and digested?

Several proteins are required for the digestion and absorption of dietary vitamin A. The pancreatic enzyme pancreatic triglyceride lipase and the intestinal brush border enzyme phospholipase B hydrolyze dietary retinyl esters in the intestine.

What is the vitamin A absorption rate?

Vitamin A and carotenoids, which are fat-soluble micronutrients, are thought to follow the destiny of lipids in the upper gastrointestinal tract [5], and their absorption is thought to take place in the top half of the small intestine.

A symptom of vitamin A insufficiency is which of the following?

Dry eyes, blindness, and withering corneas, sometimes known as Bitots spots, are all symptoms of vitamin A insufficiency. The inability to generate tears is generally one of the first indicators of insufficiency.

In the diet quizlet, what type of food is a key source of vitamin E?

What is the most common vitamin E food source? Plant-based foods include: The oils from the plants, in particular. Origin of the Animal: Vitamin E is mostly present as alpha-tocopherol and is concentrated in the animal’s fatty tissues.

What is the nutrition of prothrombin quizlet?

Prothrombin is a vitamin K-dependent protein that aids in the coagulation of blood.

What is vitamin A supplementation, and how does it work?

Vitamin A supplementation entails giving high-dose vitamin A supplements to all children aged 6 months to 5 years who live in high-risk areas for vitamin A deficiency two or three times a year. On a per-person basis, vitamin A supplementation is often affordable.

What is a simple definition of vitamin?

(VY-tuh-min) The body need modest amounts of this vitamin to function and stay healthy. Vitamin A aids vision, bone formation, reproduction, epithelium (cells that line the body’s interior and external surfaces), and infection resistance. It is a fat-soluble substance (can dissolve in fats and oils).

What is the meaning of vitamin A?

Retinol, retinal, and retinyl esters are all fat-soluble retinoids that make up vitamin A [1-3]. Immune function, eyesight, reproduction, and cellular communication are all affected by vitamin A [1,4,5].

What role does vitamin A play in cell growth?

Vitamin A also promotes white blood cell formation and activity, aids in bone remodeling, maintains healthy endothelium cells (those that line the body’s internal surfaces), and regulates cell growth and division, which is necessary for reproduction.

What is the role of vitamin B12 in the body?

Vitamin B12 is required for the production of red blood cells and DNA. It also plays an important role in the formation and function of brain and nerve cells. Vitamin B12 binds to the protein found in our diets. Hydrochloric acid and enzymes in the stomach break down vitamin B12 into its free form.

Do B vitamins have a role in enzymatic reactions as coenzymes?

A low-molecular-weight molecule that acts at an enzyme’s active site (i. E., catalytic centre), hence playing a major (important) role in the chemical reaction catalyzed by the enzyme. In the body, b-vitamins either form coenzymes or are transformed to them.

Which of the following statements best explains the relationship between vitamin A and vision?

Vitamin A (also known as all-trans-retinol) has been demonstrated to help with night vision when it comes to eyesight. Vitamin A is a precursor of rhodopsin, a photopigment present in rods in our retina that allows us to see at night. Night blindness develops when vitamin A is deficient.

What can you infer about the vitamin A content of this cereal from the Nutrition Facts label?

What can you infer about the vitamin A content of this cereal from the Nutrition Facts label? In addition to the vitamin A already contained in the cereal, milk adds a moderate amount of vitamin A.

Fat-soluble vitamins are classified as which of the following?

Because they are soluble in organic solvents and are absorbed and transported in a way comparable to fats, vitamins A, d, e, and K are known as fat-soluble vitamins.

How can you know if you’re deficient in vitamin A?

There have been created surrogate biochemical indicators of vitamin A status, as defined by liver reserves. The measurement of serum retinol content is a standard way to check for vitamin A shortage, but it is homeostatically controlled until liver stores are dangerously low.

How can you know if you’re deficient in vitamin A?

Methods. High-performance liquid chromatography (HPLC) (22), or fluorometry with a portable device (e. G., the iCheck Fluoro device) can be used to quantify serum retinol.