BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Of these six nutrients, carbohydrates, protein and fats provide calories. Each gram of carbohydrate and protein yield 4 calories/gram.

Detailed explanation-2: -A gram of carbohydrate has 4 calories.

Detailed explanation-3: -Sliding down the label to the total carbohydrates it reads sugars “4g, ” or “4 grams.” This important bit of information is your key to converting grams into teaspoons. Four grams of sugar is equal to one teaspoon. To be precise, 4.2 grams equals a teaspoon, but the nutrition facts rounds this number down to four grams.

Detailed explanation-4: -Ten grams of a carbohydrate provides 40 calories of energy. This is the same amount of energy as your body receives from ten grams of protein.

Detailed explanation-5: -The Dietary Guidelines for Americans recommend that carbohydrates make up 45% to 65% of total daily calories. So if you get 2, 000 calories a day, between 900 and 1, 300 calories should be from carbohydrates. That translates to between 225 and 325 grams of carbs a day.