Yes, active transport requires a membrane because it involves the movement of molecules or ions against their concentration gradient, which requires energy expenditure. This process is facilitated by specific transport proteins embedded within the membrane.
Water can use both passive and active transport mechanisms. Passive transport involves movement of water molecules across a membrane without the need for energy, while active transport involves the use of energy to move water molecules against their concentration gradient.
Pushing a cart through a store is more like active transport because it requires energy and effort to move the cart against resistance, such as friction or gravity. Active transport involves moving substances across a membrane against a concentration gradient, which also requires energy. In contrast, passive transport occurs naturally without energy input, like a ball rolling downhill. Therefore, the act of pushing a cart involves an active process similar to active transport.
Active transport requires ATP and a transport channel. The channel is made of proteins.
active transport -transport against concentration gradient that requires chemical energy passive transport- requires no energy at all
Molecules
Yes, active transport requires a membrane because it involves the movement of molecules or ions against their concentration gradient, which requires energy expenditure. This process is facilitated by specific transport proteins embedded within the membrane.
because it involves the movement of molecumes from a point of higher concentration to a lower concentration through a semipearmable membrane..
Active transport requires more energy than diffusion this is because during active transport, the molecules are being transported against and toward the concentration gradient whereas in diffusion, the molecules go from the concentration gradient.
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.
Yes, facilitated diffusion is reversible because it involves the movement of molecules across a membrane with the help of transport proteins. These transport proteins can facilitate the movement of molecules in both directions depending on the concentration gradient of the specific molecule.
Because there is a higher concentration inside the cell then out side ....because it requires energy to move the molecules outside in a different direction then they would normally move, it is like riding a bike up a hill it requires energy.
Water can use both passive and active transport mechanisms. Passive transport involves movement of water molecules across a membrane without the need for energy, while active transport involves the use of energy to move water molecules against their concentration gradient.
Active transport requires energy in the form of ATP
Pushing a cart through a store is more like active transport because it requires energy and effort to move the cart against resistance, such as friction or gravity. Active transport involves moving substances across a membrane against a concentration gradient, which also requires energy. In contrast, passive transport occurs naturally without energy input, like a ball rolling downhill. Therefore, the act of pushing a cart involves an active process similar to active transport.
it is active because it requires energy
no because it is a form of passive transport. only active transport requires energy. facilitated diffusion just means that it cant be just absorbed through the membrane, it must go through specific chanels or be helped by transport proteins. but because facilitated diffusion moves from higher to lower concentrations, it requires no energy.