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What is the source of the energy used in active transport?
The energy used in active transport is derived from ATP (adenosine triphosphate), which is produced through cellular respiration in the mitochondria of cells. ATP provides the necessary energy for the transport proteins to move molecules against their concentration gradient across the cell membrane.
Describe the two methods of active transport?
Active transport involves the movement of molecules against their concentration gradient, requiring energy input. Two methods of active transport include primary active transport, where energy from ATP is directly used to move molecules, and secondary active transport, where the movement of one molecule down its gradient provides energy to transport another molecule against its gradient.
What molecule provides energy for active transport?
Adenosine triphosphate (ATP) is the molecule that provides energy for active transport in cells. ATP is generated through cellular respiration and is used as a source of energy for various cellular activities, including active transport processes that move molecules against their concentration gradient.
What ways of moving molecules across a membrane requires energy?
Active transport requires energy to move molecules across a membrane against their concentration gradient. This process is facilitated by specific carrier proteins embedded in the membrane that use energy, usually in the form of ATP, to transport molecules.
What is the movement of molecules across a membrane against their concentration at the expense of ATP energy called?
Active transport. It requires energy in the form of ATP to move molecules against their concentration gradient.
How does facilitated transport differ from active transport in terms of the energy requirements and mechanisms involved in moving molecules across a cell membrane?
Facilitated transport and active transport are two ways molecules can move across a cell membrane. Facilitated transport does not require energy from the cell, while active transport does require energy in the form of ATP. Facilitated transport uses carrier proteins to help molecules move across the membrane, while active transport uses pumps to move molecules against their concentration gradient.
What two characteristics describe active transport?
Two characteristics that describe active transport are that active transport: -require energy -always maintain effervescence, which is the the state in which molecules move from a lower concentration to a higher one.
Which type of membrane transport process uses ATP as a source of energy?
Active transport processes use ATP as a source of energy to move molecules against their concentration gradient across a cell membrane. This process requires specific transport proteins, such as ion pumps, to actively transport molecules across the membrane.
Does active transport result in an even distribution of molecules?
No. Active transport uses energy to transport specific molecules against a concentration gradient. Passive transport will result in an even distribution of molecules because they allow molecules to move down a concentration gradient.
What are passive and active transport?
Passive transport is the movement of molecules across a cell membrane without requiring energy, such as diffusion and osmosis. Active transport, on the other hand, requires energy to move molecules against their concentration gradient, typically using protein pumps or transporters.
What ways molecules cross the membrane with energy?
Molecules can cross the membrane with energy through active transport, which uses energy (often from ATP) to move molecules against their concentration gradient. Another way is through facilitated diffusion, where molecules move with the help of specific protein channels or carriers that provide energy for their transport.
What requires ATP cellular energy?
Processes that require ATP cellular energy include muscle contraction, active transport of molecules across cell membranes, and cellular respiration to generate energy in the form of ATP. Additionally, ATP is needed for biosynthesis of molecules, DNA replication, and cell division.
