nutrients Flashcards
(24 cards)
what is the use of carbohydrates
to provide energy
what is the use of Protein
For growth and repair
what is the use of Lipids (fats and oils)
To provide energy. Also to store energy in the body and insulate it against the cold.
what is the use of Minerals
Needed in small amounts to maintain health
what is the use of Vitamins
Needed in small amounts to maintain health
what is the use of Dietary fibre
To provide roughage to help to keep the food moving through the gut
what is the use of Water
Needed for cells and body fluids
what are the 3 best sources of potassium
bananas, oranges, chocolate
around what percentage of your body mass is water
70%
how much fruit and veg should you eat in a day
400 g
what is a nutrient
A nutrient is a substance needed by organisms to stay alive and healthy.
what can a lack of iron cause
iron deficiency can cause anaemia, where there are too few red blood cells
what can a lack of iodine cause
iodine deficiency can cause a swelling in the neck called goitre
vitamin a deficiency can cause…
blindness
vitamin c deficiency can cause…
scurvy
vitamin d deficiency can cause…
rickets
how can you test for glucose
You heat benidict solution to 60 degrees. if glucose is present it turns red.
how do you test for starch
you add iodine to it and if it turns black starch is present
how do you test for fat
spread the substance on tracing paper. If paper goes see through then fat is present
how do you test for protein
add biruret solution and it would turn purple
What are 3 symptoms of obesity
stroke, type 2 diabetes and sleep openia
Causes of obesity
genetics, over eating, frequency of eating and poor diet
symptoms of scurvy
loss of teeth, bulging eyes, bleeding into skin
causes of scurvy
it is a disease caused by chronic vita c deficiency. Good sources of vita c citrus fruits and green vege
