Food Test, PET and CAT scans Flashcards
In the test for starch, what kind of complex if formed when starch is present?
Starch-polyiodide complex
In the test for reducing sugars, what will reduce ions like Cu2+.
All monosaccharides and most disaccharides, except sucrose.
What does PET stand for?
Position Emission Tomography
What do tracers do in a PET scan?
Release the radioactivity form the atom.
What type of energy is released when a positron collides with an electron?
Gamma rays
How is a 3D image generated in a PET scan?
When the positron and electron collide, the gamma ray produced is detected. Two rays produced for one collision.
Name 3 medical applications of PET.
Various cancer, heart condition and dementia.
What 2 types of tissue can be visualised using a CAT scanner?
Soft and bone tissue.
Type of EM radiation in CT scan?
X-rays
What does CAT stand for?
Computerized axial tomography
How is a 3D image of the body generated in a CT scan?
Spiral machine around body creates slices as computer translates images into 360 views or entire body.
