Which of the following is a consequence of increased viscosity of a fluid?
Particles have a decrease in mobility.
The fluid will have a lower density.
The fluid will have a higher flow rate.
The fluid will have a higher pressure.
The Correct Answer is A
An increase in viscosity of a fluid results in a decrease in mobility of particles.
Viscosity is the resistance of a fluid to a change in shape or movement of neighbouring portions relative to one another.
It denotes opposition to flow and may be thought of as internal friction between the molecules.
Choice B is incorrect because an increase in viscosity does not affect the density of a fluid.
Choice C is incorrect because an increase in viscosity results in a decrease, not an increase, in flow rate.
Choice D is incorrect because an increase in viscosity does not affect the pressure of a fluid.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
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Correct Answer is A
Explanation
The normal flora refers to the microbial community that colonizes on the skin and mucus membrane.
Normal flora can be found in many human body sites, including the skin, respiratory tract, urinary tract, and digestive tract.
Choice B is incorrect because normal flora does not refer to a group of infectious parasites that cause diarrheal diseases.
Choice C is incorrect because normal flora does not refer to the genetic material of bacteria housed within a true nucleus.
Choice D is incorrect because normal flora does not refer to the protein coat surrounding the viral genome.
Correct Answer is A
Explanation
The Golgi apparatus is a membrane-bound organelle that is responsible for transporting, modifying, and packaging proteins and lipids into vesicles for delivery to targeted destinations.
Choice B is incorrect because mitochondria are responsible for energy production.
Choice C is incorrect because ribosomes are responsible for protein production.
Choice D is incorrect because the endoplasmic reticulum is responsible for lipid production and protein production, but not for modifying, sorting and packaging proteins and lipids.
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