Vitamin A – Page 03

Vitamin A plays an instrumental role in numerous physiological processes, from bolstering immunity to ensuring proper development. This nutrient is crucial for maintaining healthy eyesight. It forms the light-absorbing molecule retinal, central in vision under low light conditions and color perception.

Furthermore, the prominent role of vitamin A in cell growth and differentiation particularly impacts the skin and lining of organs. Thus, optimal intake can contribute to skin health and may help to prevent certain types of cancer.

This essential vitamin is fundamentally woven into the mechanics of our immune system as well. It invigorates the function of white blood cells and aids in maintaining the integrity and functioning of cells in the skin, respiratory, and gastrointestinal tracts.

Lastly, vitamin A is crucial during pregnancy and breastfeeding for the proper growth and developmental processes. Its deficit can lead to serious birth defects and hamper post-natal development. Hence, its sufficient daily intake is of salient value for overall well-being.

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#1. What physiological role does Vitamin A play?

A) It ensures proper muscle development

A) It ensures proper muscle development

B) It enhances intellectual abilities

B) It enhances intellectual abilities

C) It bolsters immunity and ensures proper development

C) It bolsters immunity and ensures proper development

D) It aids in hair growth

D) It aids in hair growth

C is the answer. The text states that Vitamin A bolsters immunity and ensures proper development.

#2. How does vitamin A contribute to maintaining healthy eyesight?

A) By minimizing foreign particles in the eyes

A) By minimizing foreign particles in the eyes

B) By forming the light-absorbing molecule retinal

B) By forming the light-absorbing molecule retinal

C) By preventing eye infections

C) By preventing eye infections

D) By enhancing peripheral vision

D) By enhancing peripheral vision

B is the answer. According to the text, Vitamin A forms the light-absorbing molecule retinal, which helps in vision under low light conditions and color perception.

#3. How does vitamin A affect skin health?

A) Vitamin A helps to thicken the skin

A) Vitamin A helps to thicken the skin

B) Vitamin A helps to darken the skin

B) Vitamin A helps to darken the skin

C) Vitamin A contributes to cell growth and differentiation in the skin

C) Vitamin A contributes to cell growth and differentiation in the skin

D) Vitamin A prevents the skin from aging

D) Vitamin A prevents the skin from aging

C is the answer. The text states that the role of Vitamin A in cell growth and differentiation particularly impacts the skin, contributing to skin health.

#4. Which of the following statements regarding Vitamin A's role in our immune system is correct?

A) Vitamin A weakens the function of white blood cells

A) Vitamin A weakens the function of white blood cells

B) Vitamin A limits the function of the immune system

B) Vitamin A limits the function of the immune system

C) Vitamin A invigorates the function of white blood cells

C) Vitamin A invigorates the function of white blood cells

D) Vitamin A has no role in the immune system

D) Vitamin A has no role in the immune system

C is the answer. The text maintains that Vitamin A invigorates the function of white blood cells and aids in maintaining the functioning of cells in various parts of the body.

#5. Why is vitamin A essential during pregnancy and breastfeeding?

A) It reduces morning sickness symptoms

A) It reduces morning sickness symptoms

B) It aids in the mother's recovery after childbirth

B) It aids in the mother's recovery after childbirth

C) It promotes the proper growth and developmental processes

C) It promotes the proper growth and developmental processes

D) It prevents the mother from gaining excess weight

D) It prevents the mother from gaining excess weight

C is the answer. According to the text, Vitamin A is crucial during pregnancy and breastfeeding for the proper growth and developmental processes.

#6. What can a deficiency in vitamin A lead to?

A) Obesity

A) Obesity

B) Birth defects and hampered post-natal development

B) Birth defects and hampered post-natal development

C) Increased chances of catching a cold

C) Increased chances of catching a cold

D) Hair loss

D) Hair loss

B is the answer. The text explains that a deficit of vitamin A can lead to serious birth defects and hamper post-natal development.

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