Lec 17 Flashcards
Simple diffusion moves
Gasses
Steroid horomones
Charged/large molecules need
A transporter
Transporter
Change shape when move
Channel
Does not change shape and allows for things to flow through
Moving from low to high concentration requires
Active transport
Uniport
Moves one
Symport
Two types in the same direction
Antiport
Two types in different direction
Gated regulation
Can be open or shute
Non-gated
Always open
Channels
Passive transport of ions
High to low concentration
Passive transporters
Move from high to low concentration but something much larger
Changes shape
Animal mobile carb
Glucose
Plant mobile carb
Sucrose
GLUT
Glucose transporter
Allows entry of glucose
Shape-Transporter
Energy: Passive
Direction: Uniport
Regulation: Non-gated
Why does glucose not leave the cell when it enters
It has moved into an area of low concentration
When glucose enters it becomes glucose 6-phosphate which cant fit into the transporter
How do plants move sucrose
Passive transporter
ATP-powered transporters moves
Ions with active transport
Proton pump
Makes a H+ gradient
Sodium-potassium pump
Exports sodium with a active transporter and moves potassium inside
ATP turns into ADP
Sodium potassium pump shape
Transporter
Sodium potassium pump energy
ATP-powered
Sodium potassium pump direction
Antiport
Sodium potassium pump regulation
Non-gated
