Read the summary and the most important questions on respiratory system

• 2 Inhaled air and exhaled air

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• what is the diffrence between the water vapour between inhaling and exhaling?

  inhaling: small amout
  exhaling: large amount

• what is the diffrence between temperature between exhaling and inhaling?

  inhaling: low
  exhaling: high

• 3 respiration in organisms

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• What is the burning process of your body?

  Fuel: oxygen + glucose --> 
  combustion products: co2 + water + energy 

• During respiration energy is released. In what way?

  All the organs inyour body need energy to function. E.g., your muscles need energy to contract and your body temperature should be maintained at 37*C

• 3.1 cold-blooded and warm-blooded

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• Which animals are warm blooded?

  mammals and birds

• What happens when it is cold with a cold-blooded animal?

  the body temperature will be low , body cells respire slowly. When respiration is low little heat is generated. This is why cold-blooded animals can hardly move during winter

• What do many warm-blooded animals have to keep them warm?

  an insulating body covering such as feathers or hair. 

• How do mammals cover them?

  they have an insulating layer of fat that sits below the skin and they have thick fur. 

• What do birds do during autumn?

  they migrate to warmer climates 

• 4 the respiratory system

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• How does air enter your lungs?

  air enter nasal cavity or oral cavity --> through pharynx an larynx air enters windpipe --> branches itself into two bronchi one to left and one right lung    --> many tiny tubes called bronchioles --> end up in tiny air sacs known as alveoli.