QUESTIONS AND CORRECT DETAILED ANSWERS
(VERIFIED ANSWERS) GRADED A+ (BRAND NEW!!)
Terms in this set (214) QUESTIONS VERIFIED ANSWERS
(unit 1) According to the article, the a. Spontaneously emit excess energy
characteristic that best identifies a natural
source of radiation is the ability to:
a. Spontaneously emit excess energy
b. Emit excess energy when excited by x-rays
c. Avoid decay.
d. Glow in the dark.
(unit 1) Half-life is defined as: c. A radioactive element's rate of decay.
a. The amount of time it takes an x-ray to reach
its target.
b. The amount of time it takes to generate a
wavelength equivalent to an x-ray.
c. A radioactive element's rate of decay.
d. How long it takes for an element to release
half of its energy.
,(unit 1) Of the electromagnetic radiation forms, d. Radio waves; gamma rays
___ have (has) the lowest energy and ___ the
highest.
a. Visible light; gamma rays
b. Radio waves; ultraviolet rays
c. Ultraviolet rays; x-rays
d. Radio waves; gamma rays
(unit 1) Wavelength is defined by the: b. Distance between 2 peaks of a waveform.
a. Height of an energetic waveform.
b. Distance between 2 peaks of a waveform.
c. Length of the entire waveform.
d. Distance between 2 valleys in a waveform.
(unit 1) Of the 5 types of possible interactions b. Photoelectric, Compton, classical
between ionizing radiation and tissues, which 3
occur at energies within the diagnostic range of
20 to 150 kV?
a. Bremsstrahlung, Compton, general scatter
b. Photoelectric, Compton, classical
c. Photoelectric, bremsstrahlung, classical
d. Classical, Compton, pair production
(unit 1) The effective dose measurement was a. Provide a dose quantity related to the
created to: probability of damaging health due to
a. Provide a dose quantity related to the stochastic effects from exposure to low levels
,probability of damaging health due to of ionizing radiation.
stochastic effects from exposure to low levels
of ionizing radiation.
b. Calculate exact dose received by target
organs.
c. Track radiation exposure rates in a national
radiation exposure database.
d. Help radiation health physicists approve
equipment by ensuring that an accurate dose
was received.
(unit 1) Exact tissue and organ dose absorbed b. False
can be calculated easily using indicators on
modern imaging equipment such as CT
scanners and image intensifiers.
a. True
b. False
(unit 1) What percentage of the human body is d. 80
made up of water molecules?
a. 20
b. 40
c. 60
d. 80
(unit 1) A function of carbohydrates in the c. Fuel for cell metabolism
, body is to provide:
a. Immunity
b. Red blood cell production
c. Fuel for cell metabolism
d. Glucose and fats to cells
(unit 1) What 4 nitrogenous bases make up the a. Adenine, guanine, thymine, cytosine
"ladder rungs" of the DNA double helix?
a. Adenine, guanine, thymine, cytosine
b. Tryamine, guanine, thymine, cytosine
c. Adenine, guanine, cortisol, cytosine
d. Glucose, guanine, thymine, cytosine
(unit 1) Where is RNA located? d. In the cytoplasm and in the nucleus
a. Only in the cytoplasm
b. Only in the nucleus
c. In the cell wall and the nucleus
d. In the cytoplasm and in the nucleus
(unit 1) The principal inorganic compounds in c. Mineral salts (electrolytes)
protoplasm are water and:
a. Carbon
b. mineral sugars.
c. Mineral salts (electrolytes)
d. nitrogen
(unit 1) The majority of a cell's molecular c. Cytoplasm