Transport Across the Cell Membrane Flashcards
No energy is requieres in what type of transport mechanism?
Passive transport
In passive transport substances move towards what type of concentration?
Substances move from high concentration to a low concentration.
What are the three types of passive transport mechanisms?
Diffusion
Facilitates Diffusion
Osmosis
Diffusion is?
When substances move from an area of high concentration a to a one of lower concentration (across a concentration gradient)
What type of concentration moves water molecules from an area of high concentration to a lower conentration?
Osmosis
A type of passive transport mechanism the requieres a protein carrier to aid the pass of molecules?
Facilitated diffusion
Osmosis is:
The diffusion of water across a permeable membrane
What type of a solution has an equal concentration inside and outside of the cell?
Isotonic
A solution is hypotonic when:
It has lower solute concentration outside of the cell than inside of the cell
What solution has a higher solute concentration outside of the cell than inside?
Hypertonic
Energy is required in the type of transport?
Active transport
Towards what type of concentration gradient do molecules move on active transport?
Substances move from a low concentration to a high concentration gradient
Against a concentration gradient
What are the 3 types of active transport mechanisms?
Active transport
Exocytosis
Endocytosis
In Active transport requieres a protein carrier?
True
Exocytosis is when:
A vesicle moves substances outside of the cell, fusing with the cell membrane
