Biology(Energy Calculations)

Question 1

How do you determine the total energy provided by a food item?

Answer 1

Multiply the mass of each macronutrient by its respective energy value.

Question 2

What is the energy value for carbohydrates?

Answer 2

17 kJ/g

Question 3

What is the energy value for proteins?

Answer 3

17 kJ/g

Question 4

What is the energy value for fats?

Answer 4

37 kJ/g

Question 5

A meal contains 50g carbs, 20g protein, and 10g fat. What is the energy from carbohydrates?

Answer 5

850kJ

Question 6

A meal contains 50g carbs, 20g protein, and 10g fat. What is the energy from protein?

Answer 6

340kJ

Question 7

A meal contains 50g carbs, 20g protein, and 10g fat. What is the energy from fat?

Answer 7

370kJ

Question 8

What is the total energy in a meal with 50g carbs, 20g protein, and 10g fat?

Answer 8

1,560kJ

Question 9

A snack bar contains 30g carbs, 5g protein, and 8g fat. What is the energy from carbohydrates?

Answer 9

510kJ

Question 10

A snack bar contains 30g carbs, 5g protein, and 8g fat. What is the energy from protein?

Answer 10

85kJ

Question 11

A snack bar contains 30g carbs, 5g protein, and 8g fat. What is the energy from fat?

Answer 11

296kJ

Question 12

What is the total energy in a snack bar with 30g carbs, 5g protein, and 8g fat?

Answer 12

891kJ