Cellular Processes and Membrane Transport Quiz
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Questions and Answers

Which type of signalling involves signalling molecules acting on the same cell?

  • Autocrine signalling (correct)
  • Endocrine signalling
  • Paracrine signalling
  • Intracrine signalling

Which type of signalling involves long-range signalling?

  • Autocrine signalling
  • Endocrine signalling (correct)
  • Intracrine signalling
  • Paracrine signalling

Which organelle releases calcium ions crucial for various signalling pathways?

  • Endoplasmic reticulum (ER) (correct)
  • Nucleus
  • Mitochondria
  • Lysosome

Which of the following is a benefit of using Nomarski (DIC) optics in microscopy?

<p>It enables visualization of 3D structures. (B)</p> Signup and view all the answers

What is the main difference between prokaryotes and eukaryotes?

<p>Prokaryotes have membrane-bound organelles, while eukaryotes do not. (B)</p> Signup and view all the answers

Which of the following is NOT a feature found in eukaryotic cells?

<p>A rigid cell wall (C)</p> Signup and view all the answers

Which of the following statements is incorrect about the Golgi Apparatus?

<p>It disassembles during cell division (C)</p> Signup and view all the answers

Which of the following statements is most correct about mitochondria?

<p>Mitochondria are able to synthesize proteins for themselves (B)</p> Signup and view all the answers

Protein folding in the rough endoplasmic reticulum is assisted by

<p>The formation of disulphide bonds (C)</p> Signup and view all the answers

Which of the following is incorrect about lysosomes?

<p>The pH of lysosomes is essential for efficient protein degradation (C)</p> Signup and view all the answers

Which of the following is true about untranslated regions (UTRs)?

<p>Genes have both 5' and 3' UTRs. (C)</p> Signup and view all the answers

Which components are necessary for efficient translation to occur?

<p>tRNA, ribosomes, amino acids, mRNA (C)</p> Signup and view all the answers

What is the correct order of an mRNA structure?

<p>5'Cap - 5'UTR - ORF - 3'UTR - PolyA (D)</p> Signup and view all the answers

Which of the following is true about DNA and RNA base pairing?

<p>DNA can base pair with both DNA and RNA. (D)</p> Signup and view all the answers

Which of the following is true about the structure of DNA?

<p>The double helix structure is determined by the order of the bases. (C)</p> Signup and view all the answers

Which of the following is true about the role of the endocytic pathway in protein trafficking?

<p>Delivers extracellular proteins into the cell for degradation or recycling. (B)</p> Signup and view all the answers

Which of the following is true about the role of the SNARE complex in protein trafficking?

<p>Promotes vesicle fusion during protein trafficking. (B)</p> Signup and view all the answers

Which of the following is true about the process of transcription and splicing?

<p>Polyadenylation of the mRNA stabilizes it. (D)</p> Signup and view all the answers

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