Active Transport Flashcards
Needs/require energy
Active transport
Utilize ATP
Active transport
This expenditure is needed to move molecules against their concentration gradient to maintain internal conditions.
Active transport
The most common example of the ——— is the Sodium-Potassium pump.
Active transport
The most common example of the active transport is the
Sodium-Potassium pump
Uses ATP to transport Sodium and Potassium ions across the cell membrane.
Sodium-Potassium pump cycle
What are the two types of active transport
Primary active transport (P.A.M.)
Secondary active transport (S.A.M.)
Ion pumps
Primary active transport
Is an intentional and uphill mode of transportation where a transport protein directly uses energy from ATP phosphorylation.
PRIMARY ACTIVE TRANSPORT
Directly uses ATP
Primary active transport
A molecule is transported due to the difference in energy from the phosphorylation of energy
Secondary active transport
Transport of potassium ions from outside the cell to inside as the protein reverts its shape due to the loss of phosphate group.
Secondary active transport
Indirectly uses ATP
Secondary active transport
Primary active transport
External
————
Internal
————
Na - high
K - low
Na- low
K - high
Used for a successful transport mechanism
Primary active transport
The ATP will break into 2:
ADP( Adenosine Diphosphate)
Pi (inorganic phosphate)
This method of transport is when one protein shuttles two different molecules across the membrane in the same direction.(SYMPORTER)
COUPLED/COTRANSPORT
This method of transport
occurs when one (1) transporter moves two (2) different molecules across the membrane in different directions (UNIPORT, SYMPORT & ANTIPORT)
COUNTER-TRANSPORT
One molecule
Uniport
Same direction
Symport
Two different molecules moving in different directions
Antiport
