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Is it true that active transport differs from passive transport in that it does not require an input of energy?
No, active transport requires an input of energy, usually in the form of adenosine triphosphate (ATP), to move substances against their concentration gradient. Passive transport, on the other hand, does not require energy and relies on the natural movement of substances down their concentration gradient.
What is endocytosis's concentration gradient?
Endocytosis is a process in which cells take in molecules and particles by engulfing them within a vesicle. It does not rely on a concentration gradient, as it is a form of active transport that requires energy to create vesicles and transport substances into the cell.
What type of transport takes place when a protein allows?
When a protein facilitates the movement of substances across a cell membrane, it typically involves a process called transport. This can be either passive transport, where substances move along their concentration gradient without energy input (e.g., facilitated diffusion), or active transport, which requires energy to move substances against their concentration gradient. Transport proteins, such as channels or carriers, play a crucial role in ensuring that essential molecules enter or exit the cell efficiently.
Is symport is active transport or passive transport?
Symport is a form of active transport. It involves the movement of two or more substances across a cell membrane in the same direction, using energy typically derived from the electrochemical gradient of one of the substances. This process requires energy input because it often moves substances against their concentration gradients.
Why does active transport allow cells to accumulate substances in high concentrations where as passive means of transport do not?
Active transport uses energy from ATP to carry substances such as glucose to areas where it is required through the use of transport proteins. Whereas, facilitated diffusion is a passive process by which molecules move from an area of high concentration to an area of low concentration and it also depends on kinetic energy. Meaning that the distribution of molecules by facilitated diffusion will be random, whereas, active transport will have control over the direction of the concentration gradient.
Is it true that active transport differs from passive transport in that it does not require an input of energy?
No, active transport requires an input of energy, usually in the form of adenosine triphosphate (ATP), to move substances against their concentration gradient. Passive transport, on the other hand, does not require energy and relies on the natural movement of substances down their concentration gradient.
Is used during active transport but not passive transport?
ATP (adenosine triphosphate) is used during active transport but not passive transport. Active transport requires energy to move substances against their concentration gradient, while passive transport relies on diffusion to move substances down their concentration gradient without the need for energy.
Active transport requires what?
Energy-requiring process by which substances move across the plasma membrane against a concentration gradient.
What is endocytosis's concentration gradient?
Endocytosis is a process in which cells take in molecules and particles by engulfing them within a vesicle. It does not rely on a concentration gradient, as it is a form of active transport that requires energy to create vesicles and transport substances into the cell.
What is the type of transport in which a cell goes against the concentration gradient in order to diffuse substances within?
Active transport is the type of transport in which a cell moves substances against their concentration gradient, requiring energy to do so. This process helps maintain the internal balance of substances within the cell.
What is difference between active and passive?
Active transport requires an input of energy and can move substabces against their concentration gradient. Passive transport does not require added energy and can move substances only down their concentration gradient.
What form of transport is not a form of passive transport?
Active transport requires energy to move substances across a cell membrane against their concentration gradient, whereas passive transport does not require energy and relies on the concentration gradient. Examples of active transport include the sodium-potassium pump and endocytosis.
What does active transport and facilitated diffusion have in common?
Both active transport and facilitated diffusion are methods of moving substances across cell membranes. Active transport requires energy input to move substances against their concentration gradient, while facilitated diffusion does not require energy and moves substances along their concentration gradient with the help of transport proteins.
Is Active transport high to low or low to high concentration?
Active transport. To go "upstream" requires ATP, a form of energy, to pump against the ion gradient.
What movement of the substances through a cell membrane against a concentration gradient 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.
What is the process that requires cellular energy to move a substance against its concentration gradient?
Active transport is the process that requires cellular energy to move a substance against its concentration gradient. This process uses ATP to pump molecules across the cell membrane, creating a concentration gradient where the molecule is more concentrated on one side of the membrane than the other.
What are Transports that requires energy from ATP to move substances across membranes?
Active transport is a process that requires energy from ATP to move substances against their concentration gradient across membranes. This can occur through specific transport proteins known as ATPases or by coupling the movement of one substance with the energy generated from ATP hydrolysis.
