Cell Nucleus and Chromosomes
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Questions and Answers

Which type of organisms lack a nuclear membrane in their cells?

  • Eukaryotes
  • Chloroplasts
  • Viruses
  • Prokaryotes (correct)

What is the main difference in cell structure between prokaryotes and eukaryotes?

  • Lack of ribosomes
  • Absence of plasma membrane
  • Presence of chlorophyll
  • Presence of nuclear membrane (correct)

Which organelle is associated with membranous vesicles in photosynthetic prokaryotic bacteria?

  • Cell wall
  • Chlorophyll (correct)
  • Plastids
  • Ribosomes

What is the fluid content inside the plasma membrane called?

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

What characteristic do viruses lack that prevents them from showing characteristics of life until they enter a living body?

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

What is the primary function of the nuclear membrane?

<p>To allow the transfer of materials between the nucleus and cytoplasm through its pores (A)</p> Signup and view all the answers

What is the composition of chromosomes?

<p>Chromosomes are composed of DNA and protein (C)</p> Signup and view all the answers

What is the role of genes in a cell?

<p>Genes contain the information necessary for constructing and organizing cells (A)</p> Signup and view all the answers

What is the difference between chromatin material and chromosomes?

<p>Chromatin material is found in non-dividing cells, while chromosomes are found in dividing cells (D)</p> Signup and view all the answers

What is a nucleoid, and in which organisms is it found?

<p>A nucleoid is an undefined nuclear region containing only nucleic acids, found in bacteria (D)</p> Signup and view all the answers

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