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Active transport in cells

4,583 views · Published 15 April 2018 · 2:40 · Indexed 30 October 2026

Channel: MooMooMath and Science · 2018 · Education

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Active Transport-Moving materials into and out of a cell.
There are two types of cellular respiration, passive transport which does not require energy, and active transport requires energy. 
I will discuss three types of active transport
Membrane pumps endocytosis and exocytosis a membrane
pump such as a sodium-potassium pump.

Additional information.

In this video I'd like to talk about active
transport. In order to stay alive cells
need to move objects into and out of the cell.
There are two types of cellular movement.
Passive transport which does not require energy,
and active transport which requires energy. Think of passive transport as riding a bike down a hill and active transport riding the bike up the hill. Which requires more energy?
Let’s see why active transport requires energy.
Sometimes the cell needs to move objects from low concentration to high concentration or up the concentration gradient. Other times a cell  may needs large objects to pass through the membrane. In
these instances active transportation is
used and active transportation  requires
energy This energy is supplied by the energy molecule ATP adenosine triphosphate
There are at least three types of active transport.
Membrane pumps, endocytosis, and exocytosis. A membrane
pump such as a sodium potassium pump move substances up the
concentration gradient or from a low
concentration to a high concentration. The sodium potassium pump moves three sodium ions for every two potassium
ions into the cell. The cell uses ATP as
energy and the channel changes its shape
and allows the sodium and potassium to
move into and out of the cell The cell also uses two types of vesicle movement called endocytosis and exocytosis which allows large objects into and out of the cell.
 Endocytosis allows the cell to move larger
objects into the cell by engulfing the
object and moving the object into the cell. During exocytosis the
cell expels an object out of the cell
For example, a neuron uses exocytosis
to expel the neurotransmitters
that are enclosed in a vesicle There you go, actice transport where energy is used to move objects into and out of a cell.
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