Food and digestion

Question 1

What elements do carbohydrates contain?

Answer 1

Carbon
Hydrogen
Oxygen

Question 2

What are lipids?

Answer 2

Fats and oils

Question 3

Lipids can be what?

Answer 3

Unsaturated or Saturated

Question 4

What elements do proteins contain?

Answer 4

Hydrogen
Oxygen
Nitrogen

Question 5

Why do we need vitamins?

Answer 5

We need vitamins to keep our diets healthy

Question 6

What is the function of vitamin A

Answer 6

Fights infections

Question 7

What is the function of vitamin K

Answer 7

Helps blood clotting

Question 8

What is the function of vitamin E

Answer 8

Prevents heart decease

Question 9

What is the function of vitamin D

Answer 9

keeps bones and teeth healthy

Question 10

What are two functions of food

Answer 10

energy
growth and repair of cells
to controle metabolism

Question 11

list a function of carbohydrates

Answer 11

cellulose in plant cell walls(cell structure)
respiration- glucose breaks down to form carbon dioxide and water
carbs stored in glycogen in animals

Question 12

list a function of lipids

Answer 12

heat insolation
protection around body organs
waterproof the body

Question 13

list a function of proteins

Answer 13

they form myosin in muscle
hormones regulate body functions
(hemoglobin is a protein)

Question 14

Why do we need to eat food

Answer 14

to give are body energy to do jobs
to grow are muscles and body

Question 15

what is physical digestion

Answer 15

the mechanical breakdown of food.

Question 16

what is chemical digestion

Answer 16

to break down nutrients using certain enzymes( such as carbohydrates, proteins and fats) into smaller molecules

Question 17

what is the aim of the digestive system

Answer 17

to break down food into smaller molecules so that it can be passed into the blood

Question 18

what happens in the mouth

Answer 18

food is indigested
teeth physically break down the food
saliva chemicals breaks down food

Question 19

what are the different teeth

Answer 19

incisors
canines
premolars
molars

Question 20

what does the oesophagus do

Answer 20

it brings food down into the stomach and physically digests it further

Question 21

what does the stomach do

Answer 21

it’s a muscular bag that physically churns food

Question 22

what in the stomach chemicals breaks down food

Answer 22

hydrochloric acid

Question 23

true or false:
from the stomach food enters the small intestine

Answer 23

true

Question 24

what does the small intestine do

Answer 24

the enzymes break down the food
&
villi around the small intestine allow food to be absorbed into the bloodstream

Question 25

what doe the pancreas do

Answer 25

makes enzymes that break down food in the stomach and in the small intestine

Question 26

what does the liver do

Answer 26

produces bile to help break down food

Question 27

troe ar false:
the liver is the smallest organ in the body

Answer 27

false: it is the largest

Question 28

what does the large intestine do

Answer 28

it reabsorbs water into the blood stream