Diet And Digestion

Question 1

Name 3 foods containing vitamin A

Answer 1

Liver, fish, dairy products, eggs

Question 2

Name 3 Symptoms of vitamin A deficiency

Answer 2

Dry eyes, night blindness and poor wound healing/weak immune system

Question 3

What is the name of vitamin C deficiency

Answer 3

Scurvy

Question 4

What happens when you have vitamin C deficiency

Answer 4

The red blood cells are destructed, eyes can fall out, fingers and legs can fall off (pirates eye patches hook hands and peg legs)

Question 5

What are symptoms of vitamin D deficiency

Answer 5

Muscle and bone pain, bending of bones

Question 6

What is the name of vitamin D deficiency

Answer 6

Rickets

Question 7

What is the name of calcium deficiency

Answer 7

Rickets or osteoporosis

Question 8

What is the function of calcium

Answer 8

Healthy teeth and bones

Question 9

What is iron deficiency called

Answer 9

Anaemia

Question 10

What is the function of iron

Answer 10

Forms the part of red blood cells/haemoglobin that bind to oxygen

Question 11

State 1 symptom of iron deficiency

Answer 11

Extreme fatigue

Question 12

What is water used to transport

Answer 12

Water is used to transport blood

Question 13

Water is essential in temperature regulation in the body

Question 14

Water is an essential solvent for chemical reactions in the body

Question 15

Fibre is a plant material that cannot be digested

Question 16

Fibre is cellulose

Question 17

Fibre is essential to assist the movement of food through the intestine

Question 18

amalayse

Answer 18

breaks down starch to maltose

Question 19

pepsin

Answer 19

breaks down protein to polypeptides

Question 20

trypsin

Answer 20

breaks down polypeptides to amino acids

Question 21

lipase

Answer 21

breaks down lipids to gylcerol

Question 22

maltase

Answer 22

breaks down maltose to glucose

Question 23

where is amylase found

Answer 23

mouth and small intestine

Question 24

where is pepsin found

Answer 24

stomach

Question 25

where is trypsin found

Answer 25

small intestine

Question 26

where is lipase found

Answer 26

small intestine

Question 27

where is maltase found

Answer 27

small intestine

Question 28

name two key properties of bile

Answer 28

neutralises stomach acids and emulsifies fats

Question 29

why does bile emulsify fats

Answer 29

so that it can be broken down in the small intestine

Question 30

Name one adaption of a villi

Answer 30

it is covered in microvilli

Question 31

name adaptions of microvilli

Answer 31

1. Only one cell thick, so short diffusion distance
2. Maximised surface area for absorbtion
3. close blood network
4. lacteal absorbs fatty acids and glycerol