Human Nutrition

Question 1

Why is vitamin c important

Answer 1

nutrient your body needs to form blood vessels, cartilage, muscle and collagen in bones

Question 2

why is vitamin d important

Answer 2

helps regulate the amount of calcium and phosphate in the body

Question 3

why is calcium important

Answer 3

plays an important role in blood clotting, helping muscles to contract, and regulating normal heart rhythms and nerve functions

Question 4

why is iron important

Answer 4

making red blood cells, which carry oxygen around the body

Question 5

why is fibre important

Answer 5

for our digestive health and regular bowel movements

Question 6

what causes scurvy

Answer 6

lack of vitamin c

Question 7

what causes rickets

Answer 7

lack of vitamin d or calcium

Question 8

alimentary canal order

Answer 8

mouth, oesophagus,
stomach, small intestine (duodenum and
ileum) and large intestine (colon, rectum,
anus)

Question 9

what is ingestion

Answer 9

taking in of substances

Question 10

what is digestion

Answer 10

breakdown of food

Question 11

what is absorption

Answer 11

the movement of nutrients from

the intestines into the blood

Question 12

what is assimilation

Answer 12

uptake and use of nutrients by

cells

Question 13

egestion

Answer 13

the removal of undigested food

from the body as faeces

Question 14

what are the two types of digestion

Answer 14

mechanical and chemical

Question 15

what is mechanical digestion

Answer 15

breakdown of large insoluble food molecules into small insoluble food molecules

Question 16

what does physical digestion do in relation to surface area

Answer 16

physical digestion increases the
surface area of food for the action of enzymes in
chemical digestion

Question 17

shape and function of incisors

Answer 17

chisel-shapes to cut food

Question 18

shape and function of canines

Answer 18

pointed to tear food

Question 19

shape and function of premolars

Answer 19

grind and mash food

Question 20

shape and function of molars

Answer 20

uneven cusps to chew food

Question 21

shape of enamel

Answer 21

hardest tissue made from calcium salts

Question 22

shape of dentine

Answer 22

major part. hard, bone-like contains living cells

Question 23

shape of pulp cavity

Answer 23

red central space containing blood vessels and nerves

Question 24

shape of gum

Answer 24

soft tissue surrounding bone

Question 25

shape of cement

Answer 25

helps attach root to jaw

Question 26

shape of crown

Answer 26

visible portion above the gum

Question 27

shape of neck

Answer 27

layer between crown and root

Question 28

shape of root

Answer 28

layer lying below gum

Question 29

what does bili do

Answer 29

increase surface area for chemical digestion

Question 30

what is chemical digestion

Answer 30

break down
of large insoluble molecules into small soluble
molecules

Question 31

what does amylase do

Answer 31

breaks down starch to maltose

Question 32

what does protease doo

Answer 32

break down protein to amino acids

Question 33

what does lipase do

Answer 33

breaks down fats and oils to fatty acids

and glycerol

Question 34

what does pepsin do

Answer 34

breaks down protein in the acidic

conditions of the stomach

Question 35

what does trypsin do

Answer 35

breaks down protein in the alkaline

conditions of the small intestine

Question 36

where are nutrients absorbed

Answer 36

samll intestine