Zusammenfassung der Ressource
resperation
- resperation releases energy from glucose so that life processes can carry on.
- aerobic resperation
- aerobic respiration is the respiration that needs oxygen.
- anaerobic respiration
- anaerobic respiration is the respiration where it does not need oxygen
- life processes
- growth and repair
- movement
- control of body temperature in mammels
- resperation is a chemical
reaction that happens in all
living cells, including pland
and animal cells. it is the
way that energy is released
from glucose so that all the
other chemical processes
needed for life can happen.
- DO NOT confuse
respiration with
breathing
- the word equation for aerobic respiration
is: glucose + oxygen = carbon dioxide +
water
- the word equation for anaerobic
respiration is: glucose = lactic acid
- aerobic respiration needs
oxygen, and it produces carbon
dioxide as a waste product. the
human respiratory system
contains the organs that allow
us to get the oxygen we need
and to remove the waste carbon
dioxide we do not need. it
contains:
- Two lungs
- tubes leading from the mouth and nose to the lungs
- various structures in the chest that
allow air to move in and out of the
lungs
- when we breath(inhaling) in our:
- diaphragm contracts and moves downwards.
- our intercostal muscles contract,moving the ribs upwards and outwards.
- the volume of our ribcage increases
- the pressure in our chest decreases below atmospheric pressure.
- the movement of air moves into the lungs
- when we breath out(exhaling) our:
- diaphragm relaxes and moves upward
- intercostal muscles relax, letting the ribs move downward and inward
- the volume of our ribcage decreases
- the pressure inside the chest increases above atmospheric pressure
- the movement of air moves out of the lungs
- alveoli
- the alveoli are adapted to make
gas exchange in lungs happen
easily and efficiently. some of the
features of the alveoli are:
- they give the lungs a really big surface area
- they have moist thin walls (one cell thick)
- they have a lot of tiny blood vessals called capillaries
- the gases move by diffusion
from where they have a high
concentration to where they
have a low concentration;
- oxygen diffuses from the air in the alveoli into the blood
- carbon dioxide diffuses from the blood into the air in
the alveoli
- we need to get oxygen from the air into our
blood, and we need to remove waste carbon
dioxide from the blood into the air. moving
gases like this is called gas exchange