Question

32. There are 4.18 calories in 1 gram of starch. True False

Answer 1

The statement is False, as starch contains about 4 calories per gram. Using the given caloric content for carbohydrates, one teaspoon of sucrose weighs approximately 3.9 grams.

Step-by-step explanation:

The statement that there are 4.18 calories in 1 gram of starch is False. When referring to the caloric content of macronutrients, carbohydrates such as starch generally contain about 4 calories per gram. This is a standard value used for basic nutritional calculations. Calories, in the context of food energy, are often talked about using a capitalized 'Calorie' which is equivalent to a kilocalorie and reflects the amount of energy needed to raise the temperature of one kilogram of water by one degree Celsius.

With respect to the question at hand, we can calculate the mass of a teaspoon of sucrose by using the given information that 16 Calories are found in one teaspoon, and the average caloric content of carbohydrates is 4.1 Calories per gram.

To find the mass in grams, we divide the total calories by the calories per gram:

Mass = Total Calories / Calories per Gram

Mass = 16 Calories / 4.1 Calories/g = 3.9 grams.

Therefore, one teaspoon of sucrose weighs approximately 3.9 grams.

Answer 2

The correct answer will be option true.

Step-by-step explanation:

Starch is a polysaccharide made up of the glucose monomer bonded via α 1,4 linkage. The starch is an important source of carbohydrate present in the human diet present in the food material like potato which is a great reservoir of starch.

One gram of starch upon oxidation provides about 4 gram of calories, protein provides 4 gram and fats provide 9 gm of calories.

Thus, the option true is the correct answer.