Lab 5-Energy Content in Food

Question 1

Catabolism and anabolism make up:

Answer 1

Metabolism

Question 2

calorie:

Answer 2

The amount of heat energy required to raise 1 gram of water by 1 degree centigrade/Celsius

Question 3

Metric equivalent of the calorie:

Answer 3

Joule (J)

Question 4

Joule

Answer 4

The kinetic energy of a two-kg mass moving at the speed of one meter per second

Question 5

Energy can have many forms including:

Answer 5

Heat and kinetic energy

Question 6

Calories on a US food label actually represent:

Answer 6

Kilocalories (kcal)

Question 7

_______J = 1 kcal

Answer 7

4180

Question 8

______J = 1 c

Answer 8

4.18

Question 9

Mass of water

Answer 9

Mass of can plus water - Mass of empty can

Question 10

Δmass of food

Answer 10

Final mass of food and holder - initial mass of food and holder

Question 11

ΔT of water

Answer 11

Maximum temperature of water - minimum temperature of water

Question 12

Energy gained by water

Answer 12

Mass of water X ΔT of water X (4.18 J/g C)

Question 13

1 kJ= _______ J

Answer 13

1000

Question 14

Energy content of food

Answer 14

Energy gained by water/Δmass of food

Question 15

Oil and/or fats have __c/g

Answer 15

9

Question 16

T/F: Fats have the most energy and calories per gram.

Answer 16

True

Question 17

Breakdown of large organic compounds into smaller compounds; provides a mechanism to release the chemical energy stored in chemical bonds:

Answer 17

Catabolism