SEM Microscopy for Disease Diagnosis

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Questions and Answers

What is the main application of flow cytometry in disease classification?

  • To perform blood counts
  • To determine the granularity of cells
  • To determine the total DNA per cell in tumor biopsies (correct)
  • To sort T cells to determine how an infection has affected their function

What type of cells will produce a higher side scatter signal in microscopy techniques?

  • Cells with a high degree of internal complexity (correct)
  • Cells with a low granularity and complexity
  • Cells with a medium granularity and complexity
  • Cells with no granularity and complexity

What is the principle behind Magnetic Resonance Imaging (MRI)?

  • The body's natural thermal properties
  • The body's natural magnetic properties (correct)
  • The body's natural electrical properties
  • The body's natural optical properties

What is not a type of medical imaging?

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

What is not a medical imaging device?

<p>Microscope (C)</p> Signup and view all the answers

What is a common application of medical imaging?

<p>To locate tumors for treatment and removal (D)</p> Signup and view all the answers

What is one of the advantages of advanced microscopy techniques in disease diagnosis?

<p>More precise disease classification (C)</p> Signup and view all the answers

What is the final output of the Scanning Electron Microscope (SEM)?

<p>Signal in the form of an image (B)</p> Signup and view all the answers

What is the significance of identifying various lifecycle stages of the Plasmodium species in disease diagnosis?

<p>To aid in the diagnosis and understanding of malaria's progression (C)</p> Signup and view all the answers

What is the purpose of observing microbial growth in the presence of various antimicrobial agents under the microscope?

<p>To determine the efficacy of drugs (D)</p> Signup and view all the answers

What is the characteristic of cancer cells observed under the microscope?

<p>Larger nuclei and darker color (A)</p> Signup and view all the answers

What is the advantage of microscopic analysis in antimicrobial sensitivity testing?

<p>Prescription of the most effective treatment (D)</p> Signup and view all the answers

What is the primary function of the fluidic system in a flow cytometer?

<p>To align cells or particles in a single file for laser interrogation (C)</p> Signup and view all the answers

What type of light is refracted by cells and travels in a different direction than its original path?

<p>Side scattered light (D)</p> Signup and view all the answers

What is the purpose of sheath fluid in the flow cell?

<p>To carry and align the cells or particles for laser interrogation (A)</p> Signup and view all the answers

What is the function of the optics system in a flow cytometer?

<p>To provide a light source for laser interrogation (C)</p> Signup and view all the answers

What type of light is used to determine the particle size in a flow cytometer?

<p>Forward scattered light (D)</p> Signup and view all the answers

What is the purpose of fluorescent probes conjugated to antibodies in a flow cytometer?

<p>To excite the particles and cause fluorescence (A)</p> Signup and view all the answers

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