BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Vitamins, minerals and water do not provide any calories, even though they are still essential nutrients.

Detailed explanation-2: -Vitamins are important nutrients that your body needs, but they don’t have any calories. The foods that contain vitamins do have calories, but they are also packed with nutrients that your body needs.

Detailed explanation-3: -Carbohydrates provide 4 calories per gram, protein provides 4 calories per gram, and fat provides 9 calories per gram.

Detailed explanation-4: -Plain water is calorie-free. Calories come from three nutrients in your diet-carbs, fats, and proteins. Alcohol-while not considered a nutrient-contributes calories as well. Plain water is devoid of these nutrients and thus contains no calories.