Unidad 1 Natural Science

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Last updated 3:27 PM on 5/24/26
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38 Terms

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Nutricion
Process that give us the energy and the raw materials from the food
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Processes involved in nutrition
Digestion,respiration,excretion and circulation
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Digestion
Process that transforms food into nutrients
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Respiration
Process in which we take oxygen from the air
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Excretion
Process in which we eliminate waste substances
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How do we eliminate waste substances?
By expelling them outside our body
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Circulation
Process in which blood carries nutrients and oxygen to all the cells in our body
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The systems involved in nutrition are
Digestive,respiratory,circulatory and urinary/excretory system
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What takes place in the digestive system?
Digestion
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What takes place in the respiratory system?
Respiration
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What takes place in the circulatory system?
Circulation
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What takes place in the urinary/excretory system?
Excretion
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What is cellular respiration?
It is when nutrients combine with oxygen to produce energy
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What does cellular respiration release?
Carbon dioxide
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What is the diference between food and nutrients?
That food contains nutrients
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What are the 6 types of nutrients?
Carbohydrates,fats,proteins,water,vitamins and minerals
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Carbohydrates are
The main source of energy
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Fats
Provide the body with greater energy than carbihydrates
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Proteins
Are necesary to grow
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Water
Is the main substance in our body
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Vitamins and minerals
Regulate many processes so that the body works properly
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The types of foodb are
Energy,regulating and body building foods
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The harvard plait contains
A quarter of proteins,a quarter of wholegrain foods and half of the plait fruits and vegetables
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The mediterranean diet is
The combination of foods that we usualy eat every day
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The mediterranean diet consists of
Eating a lot of foods of plant origin,eating fresh and seasonal foods,eating fish,chiken,diary products and eggs, and using olive oil
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The different food preservation methods are
Cold,heat,add substances and dehydration
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What are the parts from the digestive system?

The digestive track and the accessory glands

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The digestive track is made up from
The mouth,the pharynx,the oesophagus,the stomach,the small intestine and the large intestine
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The accessory glands are made up from
The salivary glands,the liver and the pancreas
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What does the mouth do?
It contains the teath and the tongue
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Where is the pharynx ?
It´s at the back of the mouth
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What does the eosophagus do? Connects the eosophagus to the small intestine
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What is the large intestine?
It is a long,thin tube that is tightly folded
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What does the large intestine do?
Connects to the outside of the body via the anus
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How many processes of digestion are? They are 3
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What is the first process of digestion?
Food breaks down into nutrients.
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What is the second process of digestion?
Nutrients pass through the walls of the small intestine and enter the blood
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What is the third process of digestion?

Food that is not digested is expelled out of the body