Module 3.2 Breathing and Respiration

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Breathing and more!
Rahma Abz
Flashcards by Rahma Abz, updated more than 1 year ago
Rahma Abz
Created by Rahma Abz over 5 years ago
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3.2 Breathing and Respiration By Rahma Salih Abdelgadir
What must cells have? Cells must obtain energy
Define respiration Respiration is a series of chemical changes, taking in cells to realise energy.
What must respiration have? Respiration must have: glucose and oxygen
What is the chemical reaction to produce energy? oxygen + glucose= carbon dioxide + water + energy
What's glucose? Glucose is a simple sugar. It comes from the digestion of food located in the digestive system.
Define respiratory system The respiratory system takes in air and makes oxygen available to cells
What happens when you breathe in though your nose? When breathing in though the nose the air is warmed, moistened and cleaned
What is cilia? Cilia are tiny hairs that line the nasal cavity
What is pharynx? Pharynx connects the mouth and nose to the oesophagus, where the mucus is swallowed
What is trachea? Trachea is a tube, its as thick as a garden hose. It has thin walls which are reinforced with rings called cartilage.
Whats the propose of the rings? The rings stop the trachea from collapsing as you inhale
What is bronchioles? Bronchioles are small tubes formed by the division of the bronchi.
Whats alveoli? Alveoli are a cluster of sacs in your lungs
What do alveoli provide? Alveoli provide a very large surface area, this allows gas to be easily exchanged between the lungs and bloodstream
What are capillaries Capillaries are tiny blood vessels
How thick are the alveoli's walls They are one cell thick
What is the process of diffusion? The process is that oxygen dissolves in the moist surface of the alveoli and moves
Where does oxygen enter after entering the blood Oxygen enters the red blood cells
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