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Why does it take energy to transport some things across the cell but it doesn't take energy to transport other things?
there are two ways to transport things into a cell: active and passive transport. In active transport the cell has to physical engulf whatever it needs from outside the cell. In passive transport, if something inside the cell has less of the item that is outside of the cell, the things outside of the cell go into the cell until the number is balanced. This happens automatically so it doesn't involve energy.
What else can I help you with?
What are two differences between active transport and passive transport in terms of energy?
Active transport requires energy in the form of ATP to move molecules across the cell membrane against their concentration gradient, while passive transport does not require energy and relies on the concentration gradient to move molecules from an area of higher concentration to an area of lower concentration. Additionally, active transport can move molecules in both directions across the membrane, while passive transport can only move molecules down the concentration gradient.
What are the similarities between facillitated transport and active transport?
Both facilitated transport and active transport involve the movement of molecules across a cell membrane with the help of carrier proteins. However, facilitated transport does not require energy input from the cell, while active transport does require energy in the form of ATP. Both processes are specific and selective in what molecules they transport across the membrane.
Why were the sailboats invented?
To travel and transport things across the sea.
A cell must expend energy to transport substances using?
A cell must expend energy to transport substances across its membrane against their concentration gradient, a process known as active transport. This energy is usually provided by ATP, the cell's main energy currency.
Does active transport require a transport protein?
Active transport requires the use of ATP because in active transport things move against the concentration gradient. Usually there is a protien pump (which is a form of a transport protien) that does this.
What are the 3 ways that things go in and out of cells?
Passive transport: molecules move across the cell membrane without requiring energy, through processes like diffusion and osmosis. Active transport: molecules move across the cell membrane using energy, often against a concentration gradient. Facilitated diffusion: molecules move across the cell membrane with the help of specific carrier proteins, still following the concentration gradient.
What ways can cells move things by active transport?
. One method is that transport proteins in the cell membrane "pick up" molecules from outside the cell and carry them in, while using energy in the process. A second method is that the cell membrane surrounds a particle and takes it in.
Facilitated diffusion and active transport?
Facilitated diffusion is the passive transport of molecules across a membrane with the help of transport proteins. This process occurs down the concentration gradient and does not require energy. In contrast, active transport requires energy to move molecules against their concentration gradient through specific transport proteins.
How does the cell transport materials across the cell membrane?
a cell transports things across the cell membrane from areas of high concentration to ares of low concentration
What cause certain things to enter cell?
Things can enter the cell through various processes, such as osmosis, diffusion and active transport. Passive transport (diffusion/osmosis) occurs because of a difference in concentration across the membrane.
3 types of active transports?
Well, darling, we've got primary active transport where molecules move against the concentration gradient using ATP, secondary active transport where molecules hitch a ride with another molecule moving down its gradient, and finally, good old vesicular transport where large molecules are engulfed by a vesicle and transported across the cell membrane. Hope that clears things up for you, sugar.
What requires no energy to move things across the cell membrane?
ginger kids
