This part of the cell acts like a security gate, controlling what enters and leaves.
cell membrane
The movement of molecules from an area of high concentration to low concentration is called this.
A cell placed in this type of solution will usually shrink
hypertonic solution
The process of maintaining stable internal conditions is called this.
homeostasis
An IV filled with pure water could cause red blood cells to do this.
Burst
These molecules make up most of the structure of the plasma membrane.
phospholipids
This type of transport requires no energy from the cell.
Passive
In this type of solution, water moves equally in and out of the cell.
isotonic solution
When equilibrium is reached, molecules continue to move, but there is no this.
movement
A steak soaked in fresh water overnight would likely become this because of osmosis.
Larger, swollen, full of water
What is letter e?
Channel proteins/ carrier proteins
Water moving across a membrane is known as this process.
Osmosis
A plant cell survives in fresh water because of this rigid structure.
cell wall
Cells use this structure to control what enters and exits in order to maintain balance.
Cell membrane
This transport process is used when a cell releases materials outside the membrane in vesicles.
Exocytosis
These membrane structures help large molecules like glucose move across the membrane.
protein channels/carrier proteins
Moving materials against the concentration gradient requires this molecule for energy.
ATP
A red blood cell placed in pure water will most likely do this.
burst/swell
Carbon dioxide and oxygen move directly through the membrane because they are this type of molecule.
Small molecules
A freshwater fish constantly gains water through osmosis because its environment is this compared to its cells.
hypotonic
This property of the membrane allows some substances to pass while blocking others.
selective permeability
This type of diffusion uses transport proteins to move substances through the membrane.
Facilitated diffusion
Ocean water is dangerous to drink because it causes body cells to lose water through this process.
Osmosis
This transport process occurs when a cell membrane surrounds and brings materials into the cell using a vesicle.
endocytosis
This is the main goal of all cellular transport processes.
maintain equilibrium or homeostasis