water and dietary fibre

Question 1

Water:

What are the factors affecting water intake (4) + examples

Answer 1

1. State of health: Fever, vomiting & diarrhea causes large amount of water to be lost.
2. Diet: Diet high in DIURETICS (coffee) increases rate of water loss due to frequent urination.
3. Environment: Hot environment = body loses more water through perspiration to regulate body temp.
4. Level of physical activity: body produces heat while doing strenuous activities = increases water loss to regulate body temp.

Eg. Water, soups, milk, celery, apple, watermelon

Question 2

Functions of water in body (5)

Answer 2

1. Regulate body temp thru perspiration
2. Important for chemical reactions (dissolving water soluble vitamins)
3. Transport nutrients & gases (blood consist of mostly water)
4. Remove waste from body. Blood dissolves CO2 and also removes it frm diff parts of the body.
5. Lubrication. Fluids in body are made up of water and these fluids acts as lubricants in diff parts of body to reduce friction between joints.

Question 3

Dietary fibre:

what are the foods that provide dietary fibre

Answer 3

Apples, Celery, Chia seeds, Banana, Broad beans

Question 4

Function of dietary fibre (4)

Answer 4

1. Lowers blood cholesterol levels. Fibre bond with cholesterol and excrete frm body.
2. Increase satiety. Fibre stays in stomach longer as it is harder to digest and makes us feel full. Prevents obesity as well as it delays hunger.
3. Slow down glucose absorption. Delays digestion of nutrients in digestive track.
4. Removes wastes. Dietary fibre attracts water which forms bulky and soft stools to prevent constipation.

Question 5

Foods that aren’t recommended to consume and why

Answer 5

1. Alcohol and caffeinated. Contains diuretic ability that increases rate of water loss from body through urinating.
2. Salty soups. Leads to further thirst as more water is needed to excrete sodium via urination.
3. Sweetened drinks. Causes obesity.