Question

Why is nutrition a necessity for an organism?
a. It provides energy for the various metabolic processes in the body.
b. It is essential for the growth of new cells and the repair or replacement of worn-out cells.
c. It is needed to develop resistance against various diseases.
d. All of the above.

Answer 1

Hint: The process by which a plant or animal gets in and utilizes food material is called nutrition. It is the study of nutrients in food, their relationship between health, diet, and disease, and how the body uses them. Essential nutrients are vitamins, minerals, carbohydrates, protein, fat, and electrolytes. Carbohydrates and fat provide 85% of the daily energy and 15% of energy is provided by protein. Nutrition is essential for an organism for several purposes.

Complete answer:
Yes, nutrition is necessary for an organism. The process of obtaining and utilizing food for survival is known as nutrition. Nutrition is required for an organism for the following purposes:
• Nutrition is necessary for the growth of new cells and the replacement or repair of worn-out cells.
• Nutrition gives energy for different metabolic processes in the body.
• Nutrition is required to produce resistance against different diseases.
• The substrate for energy production which is utilized in the different life processes for survival is provided by nutrition.

Hence, the correct answer is option (D).

Additional information:
• Molecular biology, biochemistry, and genetics help nutritionists to study how nutrients affect the body of human beings.
• Nutrition helps to maintain a healthy weight of the body.
• Nutrition decreases the risk of chronic disease that leads to overall health and well- being.
• Nutrients can be macronutrients (those which are required in large quantities) or micronutrients (those which are required in small quantities).

Note: Nutrition is very much essential for an organism. Best nutrition not only promotes better physical health and decreases sensitivity to disease, but also participates in cognitive development and academic achievement. Nutrition promotes growth and development. It keeps an organism healthy and wellbeing. Nutrition prevents future illness and improves the length and quality of life. The body needs nutrition for proper functioning and metabolism.