Understanding Protoplasm in Cells

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Questions and Answers

What is the living part of a cell that is surrounded by a plasma membrane?

  • Nucleoplasm
  • Cytoplasm
  • Protoplasm (correct)
  • Chromatoplasm

According to Sharp (1921), what term was used to refer to the entire cell, excluding the cell wall?

  • Protoplasm (correct)
  • Cytoplasm
  • Chromatoplasm
  • Nucleoplasm

For Strasburger (1882), what did the cytoplasm definition exclude?

  • Plastids (correct)
  • Vacuole
  • Chromatoplasm
  • Nucleus

In older usage, what was the extra-nuclear portion of the protoplast called?

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

Who coined the term 'nucleoplasm'?

<p>van Beneden (B)</p> Signup and view all the answers

According to Mohl (1846), protoplasm is a general term for which of the following?

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

In Sharp's (1921) definition, what is composed of protoplasm according to the older usage?

<p>The extra-nuclear portion of the protoplast and the nucleus (D)</p> Signup and view all the answers

Which term was coined by van Beneden (1875) for the living substance in its broader sense?

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

What did Strasburger's (1882) cytoplasm definition exclude?

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

According to Kölliker (1863), what was 'cytoplasm' originally coined as a synonym for?

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

What is the primary component of the cell membrane?

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

Which type of proteins span the membrane and serve as membrane transporters?

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

What do glycolipids embedded in the outer lipid layer serve as?

<p>Facilitators of cell signaling (D)</p> Signup and view all the answers

In addition to controlling the movement of substances, what other function are cell membranes involved in?

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

What is the carbohydrate layer called that the cell membrane serves as an attachment surface for?

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

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