2.3 - Energy & Waste

Question 1

When you put food into your mouth.

Answer 1

Ingestion

Question 2

Where mechanical and chemical digestion begin.

Answer 2

Ingestion (mouth)

Question 3

Teeth and tongue breakdown food into smaller pieces.

Answer 3

Mechanical Digestion

Question 4

Makes saliva that breaks down food.

Answer 4

Salivary Glands

Question 5

5 examples of nutrients.

Answer 5

Protein, Carbohydrates, Fats, Vitamins, Minerals

Question 6

The amount of energy in food is measured in Calories.

Answer 6

Calorie

Question 7

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

Answer 7

Calorie

Question 8

Releases the energy from the processed food.

Answer 8

Your digestive system

Question 9

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

Answer 9

Nutrients

Question 10

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

Answer 10

Digestion

Question 11

The 4 steps of digestion.

Answer 11

Ingestion, digestion, absorption, and elimination

Question 12

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

Answer 12

Mechanical Digestion

Question 13

Breakdown pieces of food into small molecules.

Answer 13

Chemical Digestion

Question 14

An enzyme, in your mouth, that helps break down carbohydrates.

Answer 14

Saliva

Question 15

A muscular tube that connects the mouth to the stomach.

Answer 15

Esophagus

Question 16

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

Answer 16

Peristalsis

Question 17

A large hollow organ that stores food.

Answer 17

Stomach

Question 18

An adult stomach can hold about ________ of food and liquid.

Answer 18

2 Liters

Question 19

Enable the stomach to expand and hold large amounts of food.

Answer 19

The Folds on the Inner Walls

Question 20

The cells in these folds produce chemicals that breakdown __________.

Answer 20

Proteins

Question 21

This stomach fluid makes the stomach acidic.

Answer 21

Gastric Juice

Question 22

An enzyme that helps breakdown the proteins in foods into amino acids.

Answer 22

Pepsin

Question 23

A long tube that is connected to the stomach, it is about 7 m (23 ft) long.

Answer 23

Small Intestine

Question 24

Finger-like projections that cover the folds of the small intestine.

Answer 24

Villi

Question 25

Nutrients enter the blood through blood vessels in this digestive organ.

Answer 25

Small Intestine

Question 26

Also known as, the colon.

Answer 26

Large Intestine

Question 27

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

Answer 27

Large Intestine

Question 28

Where water is absorbed, leaving behind semisolid waste.

Answer 28

Large Intestine

Question 29

The last section of the large intestine, about 8 inches long.

Answer 29

Rectum

Question 30

The final opening or “exit door” of the digestive system.

Answer 30

Anus

Question 31

The semisolid waste that is ready to leave the digestive system.

Answer 31

Feces

Question 32

Removes liquid waste from the body.

Answer 32

Urinary System

Question 33

Bean-shaped organs that filter, or remove, waste from blood.

Answer 33

Kidneys

Question 34

Ureters from the kidneys deliver liquid waste to this organ that is like a waste sac.

Answer 34

Bladder

Question 35

Liquid waste leaves the body from this small tube that is connected to the bladder.

Answer 35

Urethra