Biology flashcards 2
(24 cards)
What is nutrition
is intake, digestion, and absorbtion of food then using it for energy and growth
What is food
any substance absorbed into the body which supplies nutrients to the cells
What is the function of food
serves as fuel
supplies building material for growth and repair
provides regulating substances like vitamins and minerals
helps the body stay healthy
What are the most important nutrients found in food
proteins, carbs, fats, water, minerals, fibre
What is the function of protein
growth
regulates important chemical reaction
protects body against infections
What is proteins deficiency disorder
kwashiorkor and marasmus
What is the function of carbs
source of energy
respiration
What is carbs deficiency disorder
marasmus
What is fats deficiency disorder
extremely low fat diets
What is the function of fats
reserves energy
insulates
shock absorber
What is the function of water
medium for chemical reactions
lubricant
solvent
reagant during hydrolysis
transport medium
What is the function of water
dehydration and death
What is the function of minerals and vitamins
regulatory substances
What is minerals and vitamins deficiency disorder
scurvy and rickets
Give an example of what each food group is allocated to
p= dairy = milk
c=rice
f=butter
What is kwashiorkor and its symptoms
very little protein and too much carbs - bloated stomach
What is marasmus and its symptoms
diet low in nutrients - loss of muscle
What Is anaemia and its symptoms
lack of iron - paleness and tiredness
What is goitre and its symptoms
lack of iodine - thyroid glands swell
What is scurvy and its symptoms
difeciency of vitamin C - gums bleed and teeth fall out
What is rickets and its symptoms
deficiency of vitamin D - soft bones buckel under weight
What is night blindness
deficiency of vitamin A- poor night vision
What is the function of fibre and its deficiency disorders
consisting of cellulose- fruits and vegetable
promotes peristalsis
prevents constipation
prevents colon cancer
constipation, too much fibre is diarrhoea