Chapter 6-Water and dietary fibre

Question 1

What are the five functions of water

Answer 1

• regulation of body temperature
• essential chemical reactions
• transportation of nutrients and gases
• remove of wastes
• lubrication of body parts

Question 2

Elaboration for regulating body temperature

Answer 2

water helps regulate body temperature by helping the body lose heat by cooling it down when sweat evaporates

Question 3

Elaboration essential chemical reactions

Answer 3

water-soluble vitamins must solute into water so that they ca undergo their chemical processes and benefit the body

Question 4

Elaboration for transportation of nutrients and gases

Answer 4

water is a major component of blood which contains haemoglobin that transports oxygen around the body

Question 5

Elaboration for removal of wastes( water)

Answer 5

urea a water soluble waste is removed from the body due water and it also helps softens stool removing wastes from the body

Question 6

Elaboration for lubricating body parts

Answer 6

fluids in the body are mostly made up of water. these fluids acts as lubricants in the body like synovial fluid which lubricates joints

Question 7

5 food sources of water

Answer 7

watermelon, soya bean milk, plain yoghurt, orange juice and milk

Question 8

What should you not drink in place of water for hydration

Answer 8

sweet drinks or coffee or alcohol or salty soups

Question 9

What are diuretics

Answer 9

diuretics are substances that increase the rate of water excretion from the body through urination

Question 10

Why does food high in sodium tend to increase thirstiness

Answer 10

soups with excess sodium leads to thirst more as more water will be required to excrete the excess dietary sodium via urination.

Question 11

Why are sweetened drinks not a good replacement of water

Answer 11

They are high in sugar and might lead to other problems like diabetes

Question 12

What are the factors affecting the amount of water needed by a person

Answer 12

• state of health
• diet
• environment
• level of physical activity

Question 13

Elaboration for state of health

Answer 13

fever, vomitting and diarrohea can cause water to be lost from the body so people with such sickness should take in more water to replace the water lost

Question 14

Elaboration for diet

Answer 14

a person who has a diet high in diuretics or dietary fibre or salt must take in more water. a person with diet high in dieuretics loses a lot of water as they urinate more. Someone with a diet high in dietary fibre needs more water to soften their stools. Someone with a diet high in salt should take in more water as water is required to remove excess sodium via urine

Question 15

Elaboration for environment

Answer 15

in a hot environment a person tends to lose more water through prespiration to keep them from overheating so more water is required to replenish the water lost

Question 16

Elaboration for level of physical activities

Answer 16

people like atheletes and construction workers work a lot physically and prespire more so they should drink more water to replenish the water lost in the form of sweat

Question 17

Function of dietary fibre in body

Answer 17

-lower blood cholestrol level
- increase sateity
-slows down glucose absorption
- removes wastes

Question 18

Elaboration for lowers blood cholesterol level

Answer 18

dietary fibre is able to bind with the cholestrol in body to excrete it out of the body thus reducing the risk of heart diseases

Question 19

Elaboration for increases satiety

Answer 19

dietray fibre stays in the stomach for a longer time and provides sateity. this can delay hunger and prevent overeating, reducing the risk of obesity

Question 20

Elaboration For slow down glucose absorption

Answer 20

dietary fibre delays the digestion of nutrients, thus slowing down the absorption of glucose into blood vessels thus preventing high glucose levels in the blood

Question 21

Elaboration For removes wastes

Answer 21

dietary fibre attracts water forming bulky and soft stools, thus preventing constipation

Question 22

6 sources of dietry fibre

Answer 22

apple, carrot, oats, lentils, macademia, chia seeds

Question 23

water and dietary fibre should work together for what

Answer 23

dietary fibre attracts water to form soft and bulky stools, so water is needed for this not just dietary fibre to prevent constipation.