Basics of Cell Transport
This is the process by which substances move across a cell membrane without the use of energy.
What is passive transport?
This type of passive transport involves the movement of small, nonpolar molecules directly through the lipid bilayer.
What is simple diffusion?
This is the movement of water molecules from a high concentration to a low concentration.
What is osmosis?
This term describes the process of a cell maintaining a stable internal environment despite external changes.
What is homeostasis?
This is a what a membrane is called when no substances are able to pass through.
What is impermeable?
This type of transport requires energy to move substances against their concentration gradient.
What is active transport?
What is facilitated diffusion?
A solution with a lower concentration of solutes compared to the inside of the cell is called this.
What is a hypotonic solution?
In plants, this active transport mechanism is crucial for absorbing nutrients from the soil.
What is root uptake?
This is what a membrane is said to be if all substances are able to pass through.
What is permeable?
The movement of water across a selectively permeable membrane is known as this.
What is osmosis?
This process involves taking in large particles or molecule using the cell membrane.
What is endocytosis?
A solution with a higher concentration of solutes than the inside of the cell is known as this.
What is a hypertonic solution?
This condition occurs when a plant cell is placed in a hypertonic solution, causing it to lose water.
What is plasmolysis?
This is what our membrane is known as being.
What is semi-permeable or selectively permeable?
This model describes the fluid nature of the cell membrane, allowing proteins and lipids to move laterally.
What is the fluid mosaic model?
This process involves getting rid of waste from the cell using vesicles that fuse with the cell membrane to release those molecules.
What is exocytosis?
This type of solution has an equal concentration of solutes inside and outside the cell.
What is an isotonic solution?
For water to move into the root cells of a plant through osmosis, this has to have a higher concentration.
What is inside of root cells?
These proteins span the entire membrane and can act as channels or carriers.
What are integral proteins?
This term refers to the difference in concentration of a substance across a membrane.
What is a concentration gradient?
This pump is essential for maintaining the resting membrane potential in cells by actively transporting sodium out and potassium into the cell.
What is the sodium-potassium pump?
What is turgid?
This is what happens to red blood cells when placed in a saltwater solution?
What is the red blood cell would become swollen?
These types of molecules are easy to move through a membrane.
What is small, non polar molecules?