Master the Concepts of Active and Passive Transport in this Knowledge-Testing Qu...
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Questions and Answers

Which process transports molecules through the cell membrane against the concentration gradient?

  • Diffusion
  • Facilitated diffusion
  • Active transport (correct)
  • Osmosis

Which process disrupts the equilibrium established by diffusion?

  • Endocytosis
  • Osmosis
  • Active transport (correct)
  • Facilitated diffusion

What does active transport help maintain between cells and extracellular fluid?

  • Dynamic equilibrium (correct)
  • Diffusion
  • Equilibrium
  • Osmosis

What happens to diffusion/osmosis after equilibrium is established?

<p>It stops completely (A)</p> Signup and view all the answers

What type of molecules can enter/exit through active transport?

<p>Small nutrients and gases (A)</p> Signup and view all the answers

What is the main requirement for active transport to occur?

<p>Energy (D)</p> Signup and view all the answers

What does active transport do to the concentration of a substance inside the cell?

<p>Increases it (A)</p> Signup and view all the answers

What does active transport do to the concentration of a substance outside the cell?

<p>Decreases it (B)</p> Signup and view all the answers

Which process requires cellular energy to move molecules from a low concentration to a high concentration?

<p>Active transport (C)</p> Signup and view all the answers

Which type of transport does not require cellular energy?

<p>Facilitated diffusion (C)</p> Signup and view all the answers

Which type of transport moves substances from high concentration to low concentration?

<p>Diffusion (D)</p> Signup and view all the answers

Which types of particles are transported through active transport?

<p>Amino acids, sugars, lipids (B)</p> Signup and view all the answers

Which types of particles are transported through passive transport?

<p>Anything soluble in lipids, small monosaccharides, water, oxygen, carbon dioxide, sex hormones (B)</p> Signup and view all the answers

Which process maintains equilibrium in the cell?

<p>Passive transport (B)</p> Signup and view all the answers

Which types of transport are examples of passive transport?

<p>Diffusion, osmosis, facilitated diffusion (B)</p> Signup and view all the answers

Why do amino acids, sugars, and lipids need to enter the cell through active transport?

<p>They diffuse too slowly for survival (A)</p> Signup and view all the answers

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