Active Transport Quiz

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Energy-driven movement.

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aimen niaz

Emiratos Árabes Unidos

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Active Transport Quiz


Active Transport QuizVersión en línea Energy-driven movement. por aimen niaz 1 What best defines active transport? a Movement of water across a membrane by osmosis b Movement of substances against their concentration gradient using energy c Movement along the concentration gradient without energy d Diffusion of small nonpolar molecules across the membrane 2 Which molecule commonly provides energy for primary active transport? a ATP b Glucose c ADP d NADH 3 What is the role of the sodium-potassium pump? a Maintains cell potential by moving Na+ out and K+ in b Senses membrane potential without moving ions c Imports Na+ and exports K+ d Helps diffusion of water 4 Which of the following is an example of primary active transport? a Ion movement down a gradient through a channel b Water moving by osmosis c Glucose diffusing through a channel d Sodium-potassium pump moving Na+ out and K+ in 5 Secondary active transport relies on what, indirectly? a Passive diffusion of ions b Mutual diffusion of water and solutes c A pre-existing gradient established by primary active transport d ATP hydrolysis at the same site 6 What is co-transport (symport) in active transport? a Two substances move in the same direction with one moving down its gradient b Only one molecule is transported c Two substances move in opposite directions d Energy is not required at all 7 What is antiport in active transport? a Two substances move in opposite directions across the membrane b Energy is not required for antiport c Two substances move in the same direction d Only water is transported 8 Which statement about active transport is true? a It may require ATP or another energy source b It does not require energy under any condition c It always results in net diffusion of solutes d It happens only in prokaryotes 9 Endocytosis is a form of active transport? a No, it only involves water movement b Yes, it requires energy to engulf material c No, it is passive diffusion d It is a type of osmosis without energy 10 Which scenario illustrates secondary active transport? a Na+ moving down its gradient without coupling b Glucose moving out of the cell by diffusion c Water entering the cell by osmosis d Glucose uptake into a cell driven by Na+ gradient from the Na+/K+ pump Feedback 1 Active transport requires energy to move substances up the gradient, unlike passive processes. 2 Primary active transport uses ATP directly to move ions like Na+ and K+. 3 It uses ATP to exchange Na+ out and K+ in, maintaining electrochemical gradients. 4 Direct use of ATP to pump ions against their gradient is primary active transport. 5 It uses gradients like Na+ to drive transport of other substances. 6 Symport uses one ion gradient to move another substance together. 7 Antiport exchanges ions or molecules across the membrane in opposite directions. 8 Active transport uses energy; some secondary forms use gradients created by primary transport. 9 Endocytosis uses cellular energy to engulf external substances. 10 Na+ gradient established by primary transport powers secondary active transport of glucose.

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Active Transport Quiz

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Sobre esta actividad

Creada por

Descarga la versión para jugar en papel

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Tipos de sintagmas (II)

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cuanto sabes de Futbol

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Brawl stars preguntas

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Verbos irregulares en Inglés

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Cultura general española

Active Transport QuizVersión en línea

por aimen niaz

What best defines active transport?

Which molecule commonly provides energy for primary active transport?

What is the role of the sodium-potassium pump?

Which of the following is an example of primary active transport?

Secondary active transport relies on what, indirectly?

What is co-transport (symport) in active transport?

What is antiport in active transport?

Which statement about active transport is true?

Endocytosis is a form of active transport?

Which scenario illustrates secondary active transport?

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