What distinguishes an ion from an electrolyte?
An ion is a charged particle, while an electrolyte is a solution that conducts electricity.
lons are formed only in solid states,while electrolytes are only in liquids.
lons are found only in non-metals, while electrolytes are found in metals.
An ion is always positive, while an electrolyte is always negative.
The Correct Answer is A
A. An ion is a charged particle, while an electrolyte is a solution that conducts electricity: Ions are atoms or molecules that carry a positive or negative charge. Electrolytes are substances that dissociate into ions in a solution, enabling the conduction of electrical current.
B. Ions are formed only in solid states, while electrolytes are only in liquids: Ions can exist in solid, liquid, or gaseous states depending on the compound, and electrolytes are defined by their ability to dissociate in a solution, not by state alone.
C. Ions are found only in non-metals, while electrolytes are found in metals: Ions can form from both metals and non-metals, and electrolytes result from ionic compounds dissolving in a solvent, regardless of whether the elements are metallic or non-metallic.
D. An ion is always positive, while an electrolyte is always negative: Ions can be either positive (cations) or negative (anions), and electrolytes contain both types of ions to maintain electrical neutrality in solution.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Providing structural support: While bones provide structural support for the body, osteoclasts do not contribute to this directly. Their activity actually breaks down bone tissue, which is part of the remodeling process that ultimately maintains bone strength and integrity.
B. Producing red blood cells: Red blood cells are produced in the red bone marrow through hematopoiesis. Osteoclasts indirectly influence this by remodeling bone to maintain marrow cavities, but they do not produce blood cells themselves.
C. Forming new bone: Osteoblasts are responsible for forming new bone by synthesizing and mineralizing the bone matrix. Osteoclasts work in conjunction with osteoblasts, resorbing bone to allow space for new bone deposition and maintaining bone turnover balance.
D. Breaking down bone tissue: Osteoclasts are specialized cells that resorb bone, breaking down the mineralized matrix and releasing calcium and phosphate into the bloodstream. This process is essential for bone remodeling, repair, and maintaining mineral homeostasis in the body.
Correct Answer is C
Explanation
A. Provide structural support to the body: Structural support is mainly provided by the skeletal system and connective tissues, not the nervous system.
B. Produce hormones for growth and development: Hormone production is the role of the endocrine system; the nervous system may influence hormone release but does not directly produce them.
C. Transmit signals between different parts of the body: The nervous system communicates via electrical and chemical signals between the brain, spinal cord, and peripheral organs, coordinating responses to stimuli and maintaining homeostasis.
D. Regulate the body's temperature: Temperature regulation is managed primarily by the hypothalamus and autonomic responses, with the nervous system playing a coordinating role rather than being the primary regulator.
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