Introduction to Histology and Cell Structure
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Questions and Answers

What is the primary function of the cell membrane?

  • To generate energy for the cell through cellular respiration
  • To provide structural support to the cell
  • To act as a selective barrier for materials entering and exiting the cell (correct)
  • To synthesize proteins and enzymes for the cell

Which of the following is NOT a component of the cell coat (glycocalyx)?

  • Blood group antigens
  • Receptor sites
  • Mitochondria (correct)
  • Cell adhesion molecules

Which of the following is the correct description of the appearance of the cell membrane under an electron microscope?

  • A series of interconnected dots
  • A thick, continuous layer
  • A trilaminar appearance with two dark lines separated by a light one (correct)
  • A single dark line

What is the primary function of cilia?

<p>To provide motility to the cell (A)</p> Signup and view all the answers

What is the primary function of microvilli?

<p>To increase the surface area for absorption (A)</p> Signup and view all the answers

Which of the following statements about the cell membrane is NOT true?

<p>It is composed of a single layer of lipids (A)</p> Signup and view all the answers

What is the primary function of the nucleus in a cell?

<p>To store and protect the genetic material (DNA) (C)</p> Signup and view all the answers

What is the primary function of the cytoplasm in a cell?

<p>To contain and organize the organelles and inclusions of the cell (C)</p> Signup and view all the answers

Which of the following organelles are membranous?

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

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