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Non-ionizing radiation: Quiz


Question 1: ________ is produced on the skin by a radical reaction initiated by UV radiation.
1,25-DihydroxycholecalciferolMelatoninVitamin DEndocrine system

Question 2: Ultraviolet light can cause burns to skin[6] and ________ to the eyes.
GlaucomaCataractKeratoconusDiabetic retinopathy

Question 3: ________, visible light, infrared, microwave, radio waves, and low-frequency RF (longwave) are all examples of non-ionizing radiation.
X-rayVisible spectrumElectromagnetic spectrumUltraviolet

Question 4: Ultraviolet light also induces ________ production from melanocyte cells to cause sun tanning of skin.
MelaninRed hairDNAHuman skin color

Question 5: [5] The light from the ________ that reaches the earth is largely composed of non-ionizing radiation, with the notable exception of some ultraviolet rays.
SunJupiterSolar SystemStar

Question 6: Ultraviolet light produces free radicals that induce cellular damage, which can be ________.

Question 7: Non-ionizing radiation mostly causes the formation of pyrimidine dimers, while ionizing radiation can cause altered DNA bases, single strand breaks, and double strand breaks (see ________).
Homologous recombinationGeneDNA repairCell cycle

Question 8: Non-ionizing radiation or non-ionising radiation refers to any type of electromagnetic radiation that does not carry enough energy per quantum to ionize atoms or molecules — that is, to completely remove an electron from an ________ or molecule.

Question 9: Non-ionizing radiation is less mutagenic than ________.
Ionizing radiationX-rayNuclear fissionRadiation therapy


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