Chapter 7 Flashcards
What is food?
Things we eat
Why do we need food?
To obtain energy
What are nutrients?
Substances found in food, needed to stay healthy and grow
What energy is food?
Chemical energy that is transferred when eaten
What 6 nutrients that we need on a daily basis?
Carbs, fats, protein, vitamins, minerals, water
What is difference between carbs and fats? Energy wise
Carbs are short term energy stores. Fats are long term energy stores.
What carbs help in?
Provide energy using starch
What carbs help in?
Provide energy using starch
Explain starch?
When starch is broken down it is glucose. Glucose is fuel needed for respiration
What is respiration?
Process of releasing energy
What do fats help in?
Give energy and make cell membrane
Difference between oil and fat
Oil is liquid. Fat is solid
Why are obese ppl always warm?
Fat is stored under the skin and around some organs. This causes heat insulation
What do proteins help in?
• Make new cells and repair them.
• make haemoglobin and antibodies
• provide energy if there’s lack of fat and carbs
What is haemoglobin?
Pigment in red blood cells that transports oxygen
Do we need large amounts of vitamins?
No
What does vitamin A help in? What is an example of vitamin A source?
•fights pathogens
•improves eyesight
Source==> carrots
What does vitamin C help in? What is a source for it?
•helps repair skin faster
•improves skin, blood, blood vessels
Sources==> oranges and lemons
What does vitamin C help in? What is a source for it?
•helps repair skin faster
•improves skin, blood, blood vessels
Sources==> lemon
Lack of vitamin C causes?
Scurvy
What does vitamin D help in? Source?
• absorbing calcium better so strong bones and teeth
Source==> oily fish and sun
What does lack of vitamin D cause?
Rickets(lag in growth)
What are 2 main minerals?
Calcium and iron
Calcium helps in? Source?
Strong bones and teeth
Source==> almond, milk, nuts
What iron helps in?
Making haemoglobin
Lack of iron is?
Anemia
Water helps in? Explain further.
Blood==> blood flows easily and transport substances
Cells==> break down substances in chemical reactions
Our body weight is _% water.
60%
What is diet
Things you eat every day
What’s a balanced diet?
Diet that contains all types of nutrients and the right amount of energy