chapter 6 - water and dietary fibre

Question 1

what are the 4 functions of water in the body

Answer 1

1) regulation of body temperature
2) essential chemical reactions
3) removal of waste products
4) lubrication of body

Question 2

explain the function of regulation of body temp in the body

Answer 2

maintain body temperature through perspiration

Question 3

explain the function of essential chemical reactions in the body

Answer 3

dissolves water-soluble nutrients in water so that chemical reactions can take place and vitamins will perform their functions

Question 4

explain the function of removal of waste products from the body

Answer 4

blood dissolves carbon dioxide and

remove it from the body

Question 5

explain the function of lubrication of the body

Answer 5

reduces friction between the joints during movement

lubricates form tears in the eyes

Question 6

what are the 4 factors affecting water intake

Answer 6

1) state of health
2) diet
3) environment
4) level of physical activities

Question 7

explain the factors of the state of health affecting water intake

Answer 7

the higher the amount of water is needed to replace the water lost when a person is ill

Question 8

explain the factors of diet affecting water intake

Answer 8

replace what is excreted when high diet in diuretic is consumed to prevent constipation when there is a high intake of dietary fibre

Question 9

explain the factors of environment affecting water intake

Answer 9

should consume more than recommend as water are lost through perspiration

Question 10

explain the factors of level of physical activities affecting water intake

Answer 10

higher intake is needed when engaging in strenuous physical activities as fluid is lost through perspiration to regulate body temperature

Question 11

what are the 4 functions of dietary fibre in the body

Answer 11

1) lowers blood cholesterol
2) increase satiety
3) slow down glucose absorption
4) removes wastes

Question 12

explain the function of lowering blood cholesterol in the body

Answer 12

bind to cholesterol to excrete it from the body thus lowering blood cholesterol levels

Question 13

explain the function of increasing satiety in the body

Answer 13

stays in the stomach longer and provides a feeling of fullness
it also delays hunger and prevents overeating to reduce the risk of obesity

Question 14

explain the function of slowing down glucose absorption in the body

Answer 14

slow down the absorption of glucose into blood vessels

Question 15

explain the function of removing wastes from the body

Answer 15

dietary fibre attracts water. this makes the movement of solid waste in the large intestine smoother and aids excretion

Question 16

give 3 food source of water

Answer 16

apple 
watermelon 
orange juice
raw celery 
raw cucumber

Question 17

give 3 food source of dietary fibre

Answer 17

prune
broccoli
oats 
wholemeal bread 
sunflower seeds
almond