Respiration Flashcards
What is the word equation for respiration
Glucose+oxygen=water+carbon dioxide+energy
What does the circulatory system do
It carries the small soluble food molecules and oxygen to every cell in our body and takes away unwanted waste substances
What does the digestive system do
It changes large insoluble food molecules into small soluble molecules that are able to be absorbed into the blood stream.
What does the respiratory system do
It takes oxygen into our bodies via the lungs and carbon dioxide is removed
Why do we need energy
Movement-muscle concentration
Making new chemicals
Growth and repair
Moving substances
Nervous impulses
Temperature regulations
What colour is bicarbonate indicator:
When carbon dioxide is removed
When carbon dioxide is added
When carbon dioxide is removed it goes from red/orange-yellow
When carbon dioxide is added it goes from red/orange-purple
What do plants take in and give out
Plants take in carbon dioxide and give out oxygen
During day the when the plant has lots of sunlight the rate of photosynthesis is higher than the rate of respiration so they produce more oxygen than they can use
What happens when you exhale
The opposite happens when we inhale
the diaphragm relaxes and moves up into a dome shape
•the intercostal muscles relax
•ribs move down and in
•the volume in the chest cavity decreases
•the air pressure inside the chest cavity and the lungs increases above atmospheric air pressure.
•Air is forced out from the high pressure inside the mouth to the outside.
What happens to the bronchial tubes if you are asthmatic
The tubes tighten,thicken,the air passages become inflamed and and get filled with mucus
What are the main chemicals found in cigarettes
Nicotine,tar,carbon monoxide and ammonia
What is nicotine,it is:
A powerful poison
Highly addictive
Affects heart,blood vessels and nervous system
Narrows coronary arteries
Increases the risk of blood clots
What is tar it’s a
Sticky brown substance
Causes bronchitis,emphysema and cancer
Stains teeth and fingers yellow
Collects in the lungs
Carbon monoxide is a:
Odourless gas
Binds to red blood cells better than oxygen
Ammonia is a:
Strong smelling gas
Normally used as a cleaning fluid
