Cell Biology Quiz

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Questions and Answers

What is the primary function of the organelles known as ribosomes?

  • To store nutrients and waste products
  • To synthesize proteins (correct)
  • To generate energy in the form of ATP
  • To facilitate cellular division

Which cell organelle is responsible for modifying and packaging proteins for secretion?

  • Mitochondria
  • Golgi apparatus (correct)
  • Lysosome
  • Nucleus

Which of the following structures is involved in the detoxification of harmful substances within a cell?

  • Centrioles
  • Peroxisomes (correct)
  • Nucleolus
  • Endoplasmic reticulum

What feature distinguishes prokaryotic cells from eukaryotic cells?

<p>The absence of a nucleus (C)</p> Signup and view all the answers

Which cellular structure is responsible for producing ATP through cellular respiration?

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

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Study Notes

Ribosomes: Protein Synthesis

  • Ribosomes are cellular organelles responsible for protein synthesis.
  • They translate genetic code from messenger RNA (mRNA) into proteins.

Golgi Apparatus: Protein Packaging and Modification

  • The Golgi apparatus is a membrane-bound organelle.
  • It functions in modifying, sorting, and packaging proteins for secretion.

Smooth Endoplasmic Reticulum: Detoxification

  • The smooth endoplasmic reticulum (SER) is a network of interconnected membranes within the cytoplasm of eukaryotic cells.
  • One of its key functions is detoxification of harmful substances.

Prokaryotic vs. Eukaryotic Cells: Membrane-Bound Nucleus

  • Prokaryotic cells lack a membrane-bound nucleus and other membrane-bound organelles.
  • Eukaryotic cells contain a membrane-bound nucleus that houses their genetic material.

Mitochondria: Energy Production

  • The mitochondria is a double-membrane-bound organelle.
  • Its primary function is to generate energy (ATP) through cellular respiration.

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