Enzyme activity is expressed as?
AMillimoles/lit
BMilli gm/lit
CMg/dl
DMicromoles/min
At t = 0 there are 6 x 10^23 radioactive atoms of a substance, which decay with a disintegration constant (λ) equal to 0.01/sec. What would be the initial decay rate?
A6 x 10^19
B6 x 10^23
C6 x 10^22
D6 x 10^21
What is the maximum radiation dose (in Gray) that bone tissue can tolerate?
A50 Gray
B30 Gray
C20 Gray
D40 Gray
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