Facilitated diffusion and active transport are both forms of cellular transport that help move molecules and ions across the membrane. However, there are some key differences between the two processes.
With facilitated diffusion, molecules or ions move passively down a concentration gradient, meaning particles will move from an area of higher concentration to a lower concentration. This type of transport does not require energy.
In contrast, active transport requires energy in the form of ATP to move molecules or ions against a concentration gradient, which means particles move from an area of lower concentration to an area of higher concentration.
In addition, active transport is usually mediated by a protein that acts as a carrier and moves one molecule at a time. Facilitated diffusion, on the other hand, does not require a protein, although there may be one present, and can move multiple molecules at once.
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What are the similarities and differences between facilitated diffusion and active transport quizlet?
Similarities: Both facilitated diffusion and active transport are types of passive transport, meaning that no energy is used to transport the substance across the cell membrane.
Differences: The biggest difference between facilitated diffusion and active transport is that facilitated diffusion requires the use of a special protein to move molecules from an area of high concentration to an area of low concentration, while active transport requires the expenditure of energy, usually in the form of ATP, in order to move molecules from an area of low concentration to an area of high concentration.
Additionally, facilitated diffusion does not require any additional energy to transport molecules, while active transport does. Lastly, facilitated diffusion is limited to a few types of molecules, such as water, nutrients, and ions, while active transport can move much larger molecules, such as proteins and macromolecules.
What is common between diffusion and active transport?
Both diffusion and active transport are methods of transporting particles (e. g. ions, proteins, and other molecules) across cellular membranes. Both processes occur constantly in living cells and play an essential role in the maintenance of a cell’s homeostasis.
Diffusion is a passive process that is driven by the concentration gradient of particles and is usually based on the random movement of particles from one region of higher concentration to another area of lower concentration until equilibrium is reached.
Active transport, on the other hand, is an energy-dependent process which uses the cell’s own energy resource (ATP) and the specific protein transporters to move particles against the concentration gradient, with the particles going from an area of lower concentration to one of higher concentration.
Both diffusion and active transport play a critical role in the normal functioning of cells and both processes are necessary for most cells to stay alive and healthy. Therefore, the common factor between them is that they are both processes used to transport molecules and particles across cellular membranes in order to maintain homeostasis.
What characteristic do facilitated diffusion and active transport have in common is both processes?
Facilitated diffusion and active transport have a few characteristics in common. Specifically, both processes are used to transport molecules from areas of low concentration to areas of high concentration.
Additionally, both processes require the assistance of membrane proteins to transport the molecules across the cell membrane. Facilitated diffusion relies on membrane proteins to induce the diffusion of molecules and ions, whereas, active transport utilizes specialized transmembrane transporters to move molecules and ions.
Lastly, both processes expend cell energy (ATP) to move molecules and ions across the cell membrane, though active transport generally uses more than facilitated diffusion due to its more complex nature.
What is the main difference between active transport and diffusion?
The main difference between active transport and diffusion is that active transport requires energy, while diffusion does not. Active transport is the process of moving molecules across a cell membrane against their concentration gradient and requires energy in the form of ATP.
This type of transport is often used for larger molecules, ions, and molecules with charged particles, which cannot freely cross a membrane. Diffusion, on the other hand, is the net movement of molecules from an area of higher concentration to an area of lower concentration and does not require energy.
This type of transport is used to move molecules and ions that are small and uncharged.
