The four types of cellurlar respiration

THE FOUR TYPES OF CELLULAR RESPIRATION

DIFFUSION: the process by which molecules 

spread from areas of high concentration, areas to low concentration. And some times molecules rich equilibrium. Example: oxygen diffuses from the air sacs in your lungs into your blood capillaries because the concentration of oxygen

is higher in the air sacs and lower in the capillary blood.

OSMOSIS: is the passage of water from

OSMOSIS

a region of high waterconcentracion through

a semi-premeable membrane a region of

low water concentration. Example: osmosis
transfers water through the plasma membrane
of a cell it manage the amount the of water, glucose
and salt in the body cell to stay alive.

FACILIATED DIFFUSION: is the process were substances

passess through a membrane with a aid of a facilitator
that is an internal membrane protein that spans
the width of the membrane. Example: liver cells
 which controls the concentration of glucose in the blood. Live cells
store excess glucose as glycogen when blood sugar levels are high(after a high carbogydrated meal) and then breakdown the glycogen as glucose-1-phosphated which is converted to glucose-6-phosphate which is finally converted to free glucose.

ACTIVE TRANSPORT: is a system that uses ATP

as an energy source to transport molecules against a

concentration gradient. Example: Na+/K+ ATPase. This membrane protein transporter moves NA+ out of the cell and K+ into the cell, building up high NA+ outside

and high K+ inside the cells.

Passive transport does not require energy input to transfer material between the cell membrane. While active transport does. Passive transport usually transport from ares of high concentration to low concentration, while active transport moves material from areas of low concentration to areas of high concentration. Also active transport and passive transport are two very important process in the cell because is what controls what enters and what leaves the cell; so is  essential to maintain the cell alive.