Active Transport
ATP is involved in _____ active transport
What is direct active transport?
____ concentrations of ions diffuse to _____ concentration of ions
Higher, lower
One type solute moves through a channel
What is a uniport?
Osmosis is the process of ____ moving across a membrane
What is water?
Can ADP and Pi (phosphate), the building blocks of ATP be used to run active transport?
No, because the molecule has to be in its ATP form to be used for active transport
The method of active transport for the sucrose pump
What protein allows for diffusion of ions?
Channel protein
Two types of solutes move through a channel in unison
What is a symport?
If a cell is in a hypotonic environment water will flow from ___ to ___
Outside the cell to inside the cell
____ and ____ can move across a lipid membrane with no channels
Small non-polar molecules and small uncharged polar molecules
If a hydrogen (H+) gradient is present, but no ATP. Will a sucrose transporter work?
Yes it will
What protein allows for the transport of glucose?
Carrier protein
Two types of solutes move through a channel in opposite directions of each other
What is an antiport
I place a cell in an isotonic environment ____ will happen
What is nothing?
The electron transport chain uses secondary active transport to make ATP. Based on what you know, how is the mitochondria able to get the energy to make ATP?
It uses a hydrogen gradient.
Let's say we have a Na K pump. ATP is present but no K is present. What would happen?
Pump wouldn't go
If I have a voltage-gated channel with no voltage, will ions diffuse?
No.
The H+-Sucrose transporter is an example of a
What is a symport?
A shriveled cell would symbolize a ____ environment
What is hypertonic?
If I put a plant cell into a pure water solution will it burst?
No, the cell wall will cause the cell to not burst. This is called turgidity.
If I mutate a H+ pump will the sucrose transporter work?
Yes, as long as the hydrogen gradient is there, once that gradient goes away then the sucrose transporter will stop.
If I have 5M sodium (Na+) on the outside of the cell, and 3M on the inside of the cell. Assuming a sodium channel is present what is the equilibrium concentration?
4M Na+
Does bulk transport require a channel?
No, because it uses the cellular membrane, not a channel.
Osmosis is a ___ process compared to facilitated diffusion
What is slow?
If I have a potassium channel present (K+), and I add in another monovalent atom (Rubidium Rb) for example. Will rubidium travel through the channel since it is a monovalent atom?
No, because rubidium to too big to fit in the channel.