Pumps (Active Transport) — Definition & Types
Read this topicExplanations 3
- Working Against the Concentration Gradient Pumps are a kind of active transport which pump ions and molecules against their concentration gradient. Active transport requires ene…
By Deena Hauze, Alex Federspiel, Valeri Natole, Mario Janakis, Jonathan Heller, Gabi Slizewska
- What Is Active Transport? Active transport is a process in which substances move from areas of low concentration to high concentration. The word "active" tells us that this type…
By Hannah Bonville, Gabi Slizewska, Deena Hauze, Alex Federspiel, Mario Janakis
- (Video) Active Transport by Teacher's Pet Active transport is transport that takes energy. This video explains how pumps in the cell membrane use energy to move molecules in and…
By Valeri Natole, Mario Janakis
Problems 20
- Where does the energy that powers the protein pump come from?
- What does ATP do for protein pumps besides supply energy?
- Pumps are used to woah‾\underline{\phantom{woah}}woah.
- The sodium potassium pump moves woah‾\underline{\phantom{woah}}woah out of the cell and brings in woah‾\underline{\phantom{woah}}woah using woah‾\underline{\phantom{woah}}woah.
- Consider the sodium-potassium pump. What would happen to the overall charge inside of the cell after five ATP have been used? You can assume that there is no other movement of c…
- Which of the following is a type of transport protein used for facilitated diffusion?
- Which of the following best describes how pumps work?
- In which of these situations would a pump be used?
- Which of the following best describes the Na+^++/K+^++ pump?
- Pumps are used in woah‾\underline{\phantom{woah}}woah transport, meaning they move molecules from woah‾\underline{\phantom{woah}}woah concentration.
- Symporters are pumps that transport two different molecules in the same direction across the membrane. These pumps are considered active transporters, where the transport of one…
- The electrochemical gradient refers to which two factors?
- Pumps that directly rely on energy from ATP to transport molecules are an example of which type of transport?
- You are comparing two diagrams. One diagram is of a pump involved in primary active transport. The other diagram is of a pump involved in secondary active transport. What is one…
- Which of the diagrams above shows a pump?
- ATP-dependent pumps are an example of primary active transport. The gradients that these pumps create often power which type of transport?
- Fill in the blank with the best answer. The sodium-potassium pump works against the woah‾\underline{\phantom{woah}}woah gradient.
- Which of the following is false about secondary active transport? There may be more than one answer.
- The sodium-potassium pump is an example of an antiporter. Given what you know about the sodium-potassium pump, if an antiporter moves molecules in the woah‾\underline{\phantom{w…
- Why do primary active transport pumps (like the sodium-potassium pump) need energy to do their job?