Biology · General Awareness
Nutrition and Food Sources
2,738 Questions
Nutrition and Food Sources questions test your knowledge of vitamins, dietary minerals, carbohydrates, and specialized dietary principles. This topic is commonly asked in railway, SSC, and UPSC exams. Review these questions to master the biological and health aspects of human nutrition.
Vitamins and mineralsDietary fiber sourcesMacronutrient functionsNaturopathic diet principlesOmega-3 fatty acids
Nutrition and Food Sources Questions
B
Correct answer
Explanation
There's no scientific evidence that eating onions after fatty meals reduces cholesterol. Onions contain some beneficial compounds, but the claim about post-meal cholesterol reduction is not supported by research. Cholesterol management requires long-term dietary changes.
A
Correct answer
Explanation
Because honey consists primarily of simple sugars like glucose and fructose, it is rapidly absorbed by the body, serving as an effective and quick energy booster.
B
Correct answer
Explanation
Taurine is an organic acid commonly found in energy drinks, but it is synthetically manufactured in laboratories for commercial use rather than harvested from animal bile. The name taurine derives from the Greek word for ox, tauros, because it was first isolated from ox bile.
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Junior Horlicks
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Complan
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Bournvita
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Viva
A
Correct answer
Explanation
The tagline 'A to Z nutrition' is used by Junior Horlicks, positioning it as a complete nutritional supplement for children. This question tests knowledge of health drink advertising and nutritional claims for children's products in India.
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provide nutrition
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provide minerals
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provide salts
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none of the above
D
Correct answer
Explanation
Water itself does not provide nutrition, minerals, or salts as implied in options A, B, and C. While water is essential for life and helps transport nutrients, it is not a source of nutrients. Therefore 'none of the above' is the correct answer.
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Fully ripe big banana
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Sprouted pulses
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One bowl rice
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One cooked potato
A
Correct answer
Explanation
A fully ripe large banana contains approximately 105-120 calories, which is higher than sprouted pulses (approx. 100-120 calories per cup), one bowl of rice (approx. 130-150 calories but usually a smaller portion), or one cooked potato (approx. 100-150 calories but typically smaller). Among the options presented, the large banana has the highest caloric density per typical serving size.
A
Correct answer
Explanation
Potato skins contain significant amounts of fiber, vitamin C, and potassium - many of the potato's most valuable nutrients are concentrated in or just below the skin. Peeling potatoes removes these beneficial nutrients.
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Broccoil
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Rice
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Oatmeal
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Pasta
C
Correct answer
Explanation
Oatmeal ranks high on the satiety index due to its fiber content and complex carbohydrates. It provides lasting fullness compared to refined options like pasta or rice. Broccoli is also filling but less studied for satiety effects.
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Fat
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Protein
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Cholesterol
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Calories
D
Correct answer
Explanation
Calories are the most critical piece of nutrition information when dieting because weight management fundamentally depends on caloric balance. While fat, protein, and cholesterol matter for overall health, total calorie intake directly determines weight gain or loss.
B
Correct answer
Explanation
Steroids are administered through multiple routes including injections, topical creams, pills, and inhalers, not just dietary intake. Anabolic steroids for performance enhancement are typically injected, while corticosteroids for medical conditions may be applied as creams or taken orally. The term 'diet only' incorrectly limits the administration methods.
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fruit
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vegtables
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meat
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grain
A
Correct answer
Explanation
An apple is biologically classified as a fruit, specifically a pome. It develops from the ovary of a flowering plant and contains seeds. Vegetables, meat, and grains are different food categories.
D
Correct answer
Explanation
Milk is rich in protein, calcium, and other nutrients that support muscle growth and bone strength, making it a food that helps you stronger. Candy, ice cream, and gum are primarily sugar-based and provide minimal nutritional value for building strength.
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To strengthen bones
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To clear out wax from the inner ear.
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To build and maintain body tissue.
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To increase blood flow to the heart.
C
Correct answer
Explanation
Protein is essential for building and repairing body tissues including muscles, skin, organs, and bones. It provides amino acids that your body uses to create new tissue and repair damaged cells. Without adequate protein, your body cannot maintain muscle mass or heal properly.
A
Correct answer
Explanation
Capsaicin is hydrophobic, meaning water will only spread it around. Casein, a protein found in milk, acts as a lipophilic detergent that surrounds and washes away capsaicin molecules, effectively neutralizing the burning sensation.
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Egg's white
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Blood Plasma
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Olive oil
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Petrol
B
Correct answer
Explanation
Coconut water from young coconuts has a chemical composition remarkably similar to human blood plasma. During World War II and in some emergency situations, coconut water was used as a temporary substitute for blood plasma when medical supplies were scarce. It contains essential electrolytes and is sterile inside the nut.