Q wk 1 Flashcards
Visible light falls between the color ______ at 400 nm and _____ at 700 nm.
red, violet
green, red
violet, red
violet, orange
violet, red
This type of lamp is used in visible and infrared regions and is the most common type:
Mercury vapor
Hydrogen
Deuterium
Tungsten
Tungsten
Percent transmittance is the ratio of the radiant energy transmitted, divided by the radiant energy incident on the sample.
True
False
True
Place in the correct order. Light gets converted to:
amps
absorbance
volts
electrons
electrons
amps
volts
absorbance
Which is not true of amino acid analysis?
Collect sample in a heparin tube
Blood samples should be drawn after a 2-3 hour fast
Analysis should be performed immediately or sample frozen
Plasma should be removed carefully to avoid platelets and white blood cells
Blood samples should be drawn after a 2-3 hour fast
When proteins have a more positive charge they are more easily dissolved.
True
False
True
Which protein has a function to maintain oncotic pressure?
Albumin
Prealbumin
Alpha-1 antitrypsin
Alpha-2 macroglobulin
Albumin
In cerebral spinal fluid, ______% of protein comes from plasma, while ______% comes from the brain.
80%, 20%
90%, 10%
5%, 95%
95%, 5%
95%, 5%