Biology and Microscopy Quiz
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Questions and Answers

What is the color of the nucleus when stained with hematoxylin?

  • blue (correct)
  • orange
  • green
  • red

What is the main function of the cell membrane that is not related to transport?

  • synthesis of immunoglobulins (correct)
  • establishing transport systems
  • regulating cell-cell interaction
  • protein synthesis

What is the thickness of the plasmalemma?

  • 75 um
  • 750 nm
  • 7.5 nm (correct)
  • 7.5 um

What is the characteristic of passive transport?

<p>occurs without input of energy (C)</p> Signup and view all the answers

What is the term for the cell 'coat' that is visible in electron micrographs?

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

Which type of channel is not gated?

<p>K+ leak (B)</p> Signup and view all the answers

What is the primary component of the microscope's optical system?

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

What is the function of the cell membrane that involves regulating interactions with other cells?

<p>Regulating cell-cell interaction (C)</p> Signup and view all the answers

What is the term for the carbohydrate-rich region on the outer surface of the cell membrane?

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

Which type of cells are responsible for engulfing and digesting foreign particles and cellular debris?

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

What type of molecules are used to intensely stain the glycocalyx?

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

What type of channel is responsible for maintaining the resting potential of a cell?

<p>K+ leak channel (C)</p> Signup and view all the answers

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