Respiration (Cellular Respiration):
This is a purely chemical process that happens deep inside your cells. Cells break down
food molecules (like glucose) to extract energy, producing carbon dioxide and water as
waste products.
Chemical Reaction:
Glucose+ Oxygen = Carbon Dioxide +Water + Energy (ATP)
Gaseous Exchange:
This is the physical exchange of Oxygen and carbondioxide between an organism and the
environment. This process happens passively through diffusion (the natural movement of
gas particles from an area of higher concentration towards an area of lower concentration).
Breathing :
This is the mechanical, muscular action of moving air into and out of the lungs (inhaling
and exhaling) so that gaseous exchange can happen in the alveoli present in the lungs.
Lungs are the organs of breathing in higher animals. In lungs(Aloveoli) the oxygen is in
higher amount than blood capillaries so it diffuses to blood while the amount of
carbondioxide in blood is higher than in alveoli so it diffuses out to alveoli which makes this
to exhale.
Gaseous Exchange in Plants
Plants don't have lungs, but they still need to exchange gases. Their strategy changes
completely depending on whether it is day or night.
During the Daytime:
Leaves are busy doing two things at once:
Photosynthesis (making food using sunlight) and Respiration (breaking down food for
energy).
The carbon dioxide produced by respiration is immediately recycled by the plant for
photosynthesis.
The oxygen produced by photosynthesis is recycled for respiration. Any extra oxygen is
released into the air.
This is a purely chemical process that happens deep inside your cells. Cells break down
food molecules (like glucose) to extract energy, producing carbon dioxide and water as
waste products.
Chemical Reaction:
Glucose+ Oxygen = Carbon Dioxide +Water + Energy (ATP)
Gaseous Exchange:
This is the physical exchange of Oxygen and carbondioxide between an organism and the
environment. This process happens passively through diffusion (the natural movement of
gas particles from an area of higher concentration towards an area of lower concentration).
Breathing :
This is the mechanical, muscular action of moving air into and out of the lungs (inhaling
and exhaling) so that gaseous exchange can happen in the alveoli present in the lungs.
Lungs are the organs of breathing in higher animals. In lungs(Aloveoli) the oxygen is in
higher amount than blood capillaries so it diffuses to blood while the amount of
carbondioxide in blood is higher than in alveoli so it diffuses out to alveoli which makes this
to exhale.
Gaseous Exchange in Plants
Plants don't have lungs, but they still need to exchange gases. Their strategy changes
completely depending on whether it is day or night.
During the Daytime:
Leaves are busy doing two things at once:
Photosynthesis (making food using sunlight) and Respiration (breaking down food for
energy).
The carbon dioxide produced by respiration is immediately recycled by the plant for
photosynthesis.
The oxygen produced by photosynthesis is recycled for respiration. Any extra oxygen is
released into the air.
