2.3 Energy & Waste

Question 1

The amount of energy in food is measured in Calories.

Answer 1

Calorie

Question 2

the amount of energy it takes to raise the temperature of 1 kg of water by 1 C.

Answer 2

Calorie

Question 3

Releases the energy from the processed food.

Answer 3

Your digestive system

Question 4

the parts of food used by the body to grow and survive

Answer 4

Nutrients

Question 5

5 Examples of Nutrients

Answer 5

Proteins, fats ,carbohydrates , vitamins and minerals

Question 6

the mechanical and chemical breakdown of food into small particles and molecules that your body can absorb and use.

Answer 6

Digestion

Question 7

The 4 steps of Digestion

Answer 7

ingestion, digestion, absorption, and elimination

Question 8

When you chew, mash and grind your food with your teeth and tongue

Answer 8

Mechanical Digestion

Question 9

break down pieces of food into small molecules

Answer 9

Chemical Digestion

Question 10

when you put food, such as bread into your mouth.

Answer 10

Ingestion

Question 11

an enzyme, in your mouth, that helps break down carbohydrates

Answer 11

Saliva

Question 12

A muscular tube that connects the mouth to the stomach

Answer 12

Esophagus

Question 13

Food moves through the esophagus and the rest of the digestive tract by waves or muscle contractions

Answer 13

Peristalsis

Question 14

a large, hollow organ that stores food.

Answer 14

Stomach

Question 15

An adult stomach can hold about 2 liters of food and liquid

Answer 15

2 liters

Question 16

Enable the stomach to expand and hold large amounts of food

Answer 16

The folds on the inner walls

Question 17

These cells in these folds produce chemicals that help break Proteins

Answer 17

Proteins

Question 18

This stomach fluid makes acid

Answer 18

Gastric Juice

Question 19

an enzyme that helps break down the proteins in foods into amino acids

Answer 19

Pepsin

Question 19

a long tube that is connected to the stomach. Its about 7 m (23 ft) long.

Answer 19

Small Intestine

Question 20

finger like projections that cover the folds on the small intestine

Answer 20

Villi

Question 21

Nutrients enter that cover the blood through the blood vessels in the digestive organ

Answer 21

Small intestine

Question 22

Also known as the colon

Answer 22

Large intestine

Question 23

is about 1.5 m 15 ft long. It has a larger diameter about 5 cm or 2 in than the small intestine

Answer 23

Large intestine

Question 24

Where water is absorbed leaving behind semisolid waste

Answer 24

Large intestine

Question 25

The last section of the large intestine about 8 inches

Answer 25

Rectum

Question 26

The final opening or the exit door of the digestive system

Answer 26

Anus

Question 27

The semisolid waste that is ready to leave the digestive system

Answer 27

Feces

Question 28

Removes liquid waste from body

Answer 28

Urinary System

Question 29

bean shaped organs that filter or remove waste from blood

Answer 29

Kidneys

Question 30

Ureters from the kidneys deliver liquid waste to this organ that’s like a w

Answer 30

Bladder