Cell Organelles and Functions Quiz

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Questions and Answers

What is a distinguishing feature of eukaryotic cells compared to prokaryotic cells?

  • Presence of membrane-bound organelles (correct)
  • Presence of a nucleus
  • Absence of genetic material
  • Absence of a cell membrane

Which organelles are visible only with an electron microscope?

  • Golgi apparatus
  • Endoplasmic reticulum
  • Mitochondria
  • Lysosomes (correct)

What is the function of endoplasmic reticulum in a cell?

  • Cytoplasmic framework providing a surface for biochemical activities (correct)
  • Regulation of cell shape and movement
  • Energy production through photosynthesis
  • Storage and release of cellular waste

Which organelle is responsible for carrying out crucial functions in cells?

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

How do large and complex cells maintain different chemical activities separate from each other?

<p>Through membrane-bound organelles (B)</p> Signup and view all the answers

In terms of size, how do eukaryotic cells generally compare to prokaryotic cells?

<p>Eukaryotic cells are generally larger than prokaryotic cells (A)</p> Signup and view all the answers

What is a major difference in size between prokaryotic and eukaryotic cells?

<p>Prokaryotic cells are generally smaller, while eukaryotic cells are generally larger. (D)</p> Signup and view all the answers

How is the nuclear region in a eukaryotic cell different from that in a prokaryotic cell?

<p>The nuclear region in eukaryotic cells is well defined and surrounded by a nuclear membrane. (C)</p> Signup and view all the answers

Which type of cells typically have a single chromosome?

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

What is a key difference between prokaryotic and eukaryotic cells in terms of organelles?

<p>Prokaryotic cells lack most of the cytoplasmic organelles present in eukaryotic cells. (B)</p> Signup and view all the answers

Which statement best describes the organelles in prokaryotic cells?

<p>Prokaryotic cells have no organelles. (D)</p> Signup and view all the answers

What is the function of the cytoplasm in a cell?

<p>To contain the fluid content inside the plasma membrane. (C)</p> Signup and view all the answers

What vital function do endoplasmic reticulum (ER) serve in eukaryotic cells?

<p>They help in the manufacture of fat molecules important for cell function. (A)</p> Signup and view all the answers

Which statement accurately describes the role of membranes in cells?

<p>Eukaryotic cells have nuclear membrane and membrane-enclosed organelles. (D)</p> Signup and view all the answers

How does rough endoplasmic reticulum (RER) differ from smooth endoplasmic reticulum (SER) in terms of appearance?

<p>RER looks rough under a microscope due to ribosomes, while SER looks smooth. (D)</p> Signup and view all the answers

Which type of cells associate chlorophyll with membranous vesicles?

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

What distinguishes eukaryotic cells from prokaryotic cells based on their chromosome organization?

<p>Prokaryotic cells have nucleoids instead of a defined nucleus. (D)</p> Signup and view all the answers

Why do viruses lack characteristics of life until they enter a living body?

<p>Viruses need to use cell machinery from living bodies to show characteristics of life (C)</p> Signup and view all the answers

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