Cell Theory in Biology

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Questions and Answers

Which scientist is credited with coining the term 'cells' after examining the structure of cork?

  • Louis Pasteur
  • Robert Hooke (correct)
  • Theodor Schwann
  • Matthias Schleiden

What is the central idea behind the cell theory?

  • All living organisms are made up of one or more cells
  • Cells are the basic unit of structure and organization in living organisms
  • New cells are produced from pre-existing cells
  • All of the above (correct)

What is the significance of the cell theory in biology?

  • It is a unifying concept that is universally accepted
  • It explains the structure and function of living organisms
  • It provides a framework for understanding the diversity of life
  • All of the above (correct)

What is the common feature shared by all cells, regardless of their size and shape?

<p>They are all surrounded by a membrane (B)</p> Signup and view all the answers

What is the significance of the exceptions to the cell theory?

<p>They highlight the need for continuous scientific exploration and discovery (D)</p> Signup and view all the answers

What was the primary method used by the early scientists who contributed to the development of the cell theory?

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

Which of the following organisms have structures that challenge the cell theory?

<p>Striated muscle fibres, aseptate fungal hyphae, and giant alga (C)</p> Signup and view all the answers

What is the characteristic of striated muscle fibres that challenges the cell theory?

<p>They are formed from multiple cells that have fused together and have multiple nuclei. (B)</p> Signup and view all the answers

What is the distinguishing feature of aseptate fungal hyphae that questions the cell theory?

<p>They have multiple nuclei and continuous cytoplasm without any septa or end walls. (B)</p> Signup and view all the answers

Which feature of the giant alga Acetabularia challenges the cell theory?

<p>It is a unicellular organism with a relatively complex structure and a single nucleus. (B)</p> Signup and view all the answers

Which of the following statements about striated muscle fibres is true?

<p>They are longer than typical cells, with a length of up to 300 mm. (C)</p> Signup and view all the answers

Which of the following statements about the cell theory is correct, based on the information provided?

<p>The cell theory has some limitations and does not apply to all organisms. (A)</p> Signup and view all the answers

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