What is the name of the process in which an atom loses or gains electrons to form an ion?
Ionization
Oxidation
Reduction
Isotopic decay.
The Correct Answer is A
Ionization is the process in which an atom loses or gains electrons to form an ion.
An ion is an atom or molecule that has a net electrical charge due to the loss or gain of one or more electrons.
Choice B is not the best answer because oxidation refers to the loss of electrons from an atom or molecule.
Choice C is not the best answer because reduction refers to the gain of electrons by an atom or molecule.
Choice D is not the best answer because isotopic decay refers to the process in which an unstable atomic nucleus loses energy by emitting radiation.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Natural killer (NK) cells are large granular lymphocytes that are capable of destroying cells infected by viruses or bacteria and susceptible tumor cells without prior sensitization and restriction by MHC antigens.
Helper T cells (choice A) are a type of white blood cell that helps other immune cells respond to infections but do not directly kill infected or tumor cells.
B cells (choice B) are a type of white blood cell that produces antibodies to fight infections but do not directly kill infected or tumor cells.
Cytotoxic T cells (choice D) are a type of white blood cell that can kill infected or tumor cells but require prior sensitization to do so.
Correct Answer is A
Explanation
Orthopnea refers to a condition in which a patient experiences difficulty breathing while lying down, but their breathing improves when they sit up or stand.
Choice B, Hypoxia, is not the correct answer because it refers to a condition in which there is a lack of oxygen supply to the body’s tissues.
Choice C, Tachypnea, is not the correct answer because it refers to rapid breathing.
Choice D, Bradypnea, is not the correct answer because it refers to abnormally slow breathing.
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