Q wk 1 Flashcards

1
Q

Visible light falls between the color ______ at 400 nm and _____ at 700 nm.

red, violet
green, red
violet, red
violet, orange

A

violet, red

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2
Q

This type of lamp is used in visible and infrared regions and is the most common type:

Mercury vapor
Hydrogen
Deuterium
Tungsten

A

Tungsten

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3
Q

Percent transmittance is the ratio of the radiant energy transmitted, divided by the radiant energy incident on the sample.

True
False

A

True

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4
Q

Place in the correct order. Light gets converted to:

amps
absorbance
volts
electrons

A

electrons
amps
volts
absorbance

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5
Q

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

A

Blood samples should be drawn after a 2-3 hour fast

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6
Q

When proteins have a more positive charge they are more easily dissolved.

True
False

A

True

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7
Q

Which protein has a function to maintain oncotic pressure?

Albumin
Prealbumin
Alpha-1 antitrypsin
Alpha-2 macroglobulin

A

Albumin

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8
Q

In cerebral spinal fluid, ______% of protein comes from plasma, while ______% comes from the brain.

80%, 20%
90%, 10%
5%, 95%
95%, 5%

A

95%, 5%

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