Water's ability to dissolve substances makes it a:
Reactant
Buffer
Solvent
Nutrient
The Correct Answer is C
A. Reactant: Water can act as a reactant in certain reactions (e.g., hydrolysis), but that role is different from dissolving substances.
B. Buffer: While water influences pH, it does not act as a buffer that resists pH change on its own.
C. Solvent: Water dissolves many ionic and polar compounds due to its polarity, making it the universal solvent for biological systems.
D. Nutrient: Water is an essential nutrient for life, but the property asked about (dissolving substances) defines it as a solvent.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Atom: Atoms are the basic chemical building blocks but are not themselves living.
B. Organelle: Organelles are membrane-bound structures within cells that perform specialized tasks but are not independent living units.
C. Molecule: Molecules are chemical combinations of atoms (e.g., proteins, lipids) and are not alive.
D. Cell: The cell is the basic unit of life, capable of metabolism, growth, reproduction, and response to stimuli.
Correct Answer is A
Explanation
A. Excitable, contractile: Muscle tissue can respond to stimulation (excitable) and generate force by shortening (contractile).
B. Rigid and inflexible: Muscle tissue is designed to contract and relax, not to be rigid and inflexible.
C. Forms nerves: Nerves are formed by nervous tissue, not muscle.
D. Non-excitable, non-contractile: This describes tissues that do not respond electrically or contract; it does not describe muscle.
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