2.3 energy and waste

Question 1

when u put the food into your mouth

Answer 1

ingestion

Question 2

where mechanical and chemical digestion begins

Answer 2

ingestion (mouth)

Question 3

teeth and tongue breakdown food into smaller pieces

Answer 3

mechanical digestion

Question 4

the amount of energy in food is measured

Answer 4

calorie

Question 5

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

Answer 5

calorie

Question 6

releases the energy from the processed food

Answer 6

your digestive system

Question 7

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

Answer 7

nutrients

Question 8

5 examples of nutrients

Answer 8

protiens, fats, carbohydrates, vitamins, and minerals

Question 9

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

Answer 9

digestion

Question 10

the 4 steps of digestion

Answer 10

ingestion, digestion, absorption, and elimination

Question 11

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

Answer 11

mechanical digestion

Question 12

break down pieces of food into small molecules

Answer 12

chemical digestion

Question 13

when you put food such as bread in your mouth

Answer 13

ingestion

Question 14

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

Answer 14

saliva

Question 15

a muscular tube that connets 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 latge hallow organ that stores food

Answer 17

stomach

Question 18

an adult stomach can hold about 2 liters of food

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 help break down protiens

Answer 20

protiens

Question 21

this stomach fluid makes the stomach acidic

Answer 21

gastric juice

Question 22

an ezmyne that helps break down the protiens in foods into amino acids

Answer 22

pepsin

Question 23

a long tube that is conected to the stomach it is about 7 m 23ft long

Answer 23

small intestine

Question 24

fingerlike protiens 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

is about 1.5 m long it has a larger diameter 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 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 the body

Answer 33

kidneys

Question 34

ureters from the kidneys deliver liquid waste to this organ that is like a W

Answer 34

bladder

Question 35

liquid waste leaves the body from this small tube that is connected to the

Answer 35

urethra