2.3 energy and waste

Question 1

when you put the food into yo mouth

Answer 1

ingestion

Question 2

where mechanical and chemical digestion begin.

Answer 2

ingestion (mouth)

Question 3

teeth and tongue breackdown food into smaller pieces

Answer 3

mechanical digestion

Question 4

makes siliva that breacks down food salivary glands

Answer 4

silivary grands

Question 5

The amount of energy in food is measured in calories

Answer 5

calorie

Question 6

The amount of energy it takes to raise the temperature of 1 kg of water by 1c

Answer 6

calorie

Question 7

releases the energy from the processed food

Answer 7

digestive system

Question 8

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

Answer 8

nutrients

Question 9

5 example of nutrients

Answer 9

portein,fats,vitamins,minerals, &carbohydrates

Question 10

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

Answer 10

digestion

Question 11

the 4 steps of digestion

Answer 11

ingestion, digestion, absorption, elimination

Question 12

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

Answer 12

mechanical digestion

Question 13

break down peices of food into small molecules

Answer 13

chemical digestion

Question 14

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

Answer 14

ingestion

Question 15

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

Answer 15

saliva

Question 16

a muscular tube that connects the mouth to the stomach

Answer 16

esophagus

Question 17

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

Answer 17

peristalsis

Question 18

a large, hollow organ that stores food

Answer 18

stomach

Question 19

an adult stomach can hold about of food and liqud

Answer 19

2 litters

Question 20

enable the stomach to expand and hold large amounts of food

Answer 20

the folds on the inner walls

Question 21

the cells in these folds produce chemicals that help break down

Answer 21

proteins

Question 22

this stomach fluid makes the stomach acidic

Answer 22

gastic juice

Question 23

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

Answer 23

pepsin

Question 24

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

Answer 24

small intestine

Question 25

fingerlike projections that cover the folds of the small intestine

Answer 25

villi

Question 26

nutrients enter the blood through blood vessels in this digestive organ

Answer 26

small intestine

Question 27

also known as the colon

Answer 27

large intestine

Question 28

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

Answer 28

large intestine

Question 29

where water is absorbed, leaving behind semisoild waste

Answer 29

large intestine

Question 30

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

Answer 30

rectum

Question 31

the final opening or exit door of the digestive system

Answer 31

anus

Question 32

the semisoild waste that is ready to leave the digestive system

Answer 32

feces

Question 33

romoves liqud waste from the body

Answer 33

urinary system

Question 34

beanshaped organs that filter, or romove, waste from blood

Answer 34

kidneys

Question 35

ureters from kidneys deliver liqud waste to this organ that is like a

Answer 35

bladder

Question 36

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

Answer 36

urethra