Respiration Flashcards
For what is digested food needed for?
Digested food is need to make our body produce energy by respiration
Energy is realised in the body by
As heat and the energy is used up by cells
What substance is used as the main energy resource in the body
The substance in our body is glucose:
Glucose+oxygen— CO2 + heat (a little bit)+ energy+water
Similarities between burning and respiration
The equation for burning and respiration is the same (they both turn into glucose)
Difference between burning and respiration
Burning is not controlled progress while respiration is.
How does oxygen get into the blood and how is transported
It is transported by the lungs. This means oxygen is converted to oxygenated blood from the alveoli. The oxygenated blood get pumped around the body.
Know why the heart has two halves
There are two halves, the left atrium is oxygened and the right atrium is deoxygenated.
Know what the different blood vessels in the body are
Arteries:to take blood away from the heart to the organs
Vein:bring deoxygenated blood to the heart from the organs
Capillary: connect arteries to the veins, small substance pass in and out of the blood.
Know how exercise affects the pulse rate and breathing rate
Your pulse rate increases and so does you breathing rate to maintain it balanced.
Know how body gets rid of carbon dioxide
The blood passes through your lungs picking up oxygen from the alveoli (air sacks), but also leaving CO2 in the alveoli.
Anaerobic
Doesn’t include oxygen
Aerobic
Includes oxygen, to break down glucose, combines it with oxygen and makes it into carbon dioxide, water and energy.
How does oxygen and digested food get from the blood to the cells that need them
The circulatory system take those things to the muscles and cells that need them, in this way they can stay alive and do their job
What happens when you breathe?
Our diaphragm contracts and moves downwards, becomes shorten, and the intracoastal muscles contract and move the ribs upwards and outwards.
How are the lungs adapted to their job?
- Good blood supply
- Really big surface area as alveoli is very thin and gases can quickly diffuse through it
- Blood vessels in the lungs have very thin wall (1 cell thick)
How does gases get into and out of our blood?
The lungs fill with oxygenated air and this oxygen is then transferred into the alveoli.
How are the lungs kept clean?
In the trachea and bronchi there are cilia and gobblet cells. Cilia because it has little hairs that clean the windpipe, taking a thin layer of muscles out of your lungs into your lungs into your thought. The mucous it sticky (property) so it helps the lungs trapping bacterias
What are the differences between inhaled and exhaled air?
The difference is that the inhaled air is that the air that we breathe and the exhaled air is the air we breathe out.
How to detect water vapour?
Breathe into a cold glass and you will see little water droplets form on it—those droplets are water vapour, we get this by condensing water
What limewater is used to test for
Carbon dioxide
How can we detect the difference between inhaled and exhaled air?
By seeing if limewater goes milky when we exhale through a straw.
The effects on the lungs on smokers are?
Their cilia get paralysed so they don’t cough at the night so they wake up with lots of mucous. They get diseases and scars by coughing as they need to get all of at once.
What are the intercostal muscles? Contracted, longer or shorter?
They are muscles between the ribs, when they air realises muscles are longer than contracted.
