Science
easyQ. No. 16213
Which omega-3 fatty acid is essential in the human diet?
Last Updated:
AAlpha-linolenic acid (ALA)
BPalmitic acid
COleic acid
DCholesterol
Correct Answer: Alpha-linolenic acid (ALA)Your Answer: A
Explanation
Correct answer: Alpha-linolenic acid (ALA). Alpha-linolenic acid is an essential omega-3 fatty acid because humans cannot synthesize it and must obtain it from food. Palmitic acid is saturated, oleic acid is a non-essential monounsaturated fat and cholesterol is a sterol, not an essential omega-3.
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Common questions and clear answers for this topic.
What nutrients does the human body need?
The body needs carbohydrates, proteins, fats, vitamins, minerals and water. Dietary fibre also supports digestive and metabolic health. A balanced diet supplies these components in amounts suited to a person’s age, activity and physiological needs.
Which nutrition facts are commonly tested in competitive exams?
Competitive exams commonly test nutrient functions and sources, energy values, vitamin and mineral deficiencies, fat-soluble and water-soluble vitamins, balanced diets, and protein-energy malnutrition such as kwashiorkor and marasmus.
How should nutrient-deficiency questions be revised?
Learn each nutrient as a four-part link: its major dietary sources, principal function, characteristic deficiency and important excess effect. This method makes similar options easier to distinguish.