The chemical reaction that uses water to break a covalent bond is called a ________ reaction.
aquatic
hydrolysis
dehydration (or condensation)
hydratic
The Correct Answer is B
A. Aquatic: Aquatic refers to environments or organisms related to water, but it does not describe a chemical process in which bonds are broken.
B. Hydrolysis: Hydrolysis is the reaction where water is used to split covalent bonds, breaking larger molecules into smaller subunits. This process is common in digestion and cellular metabolism.
C. Dehydration (or condensation): Dehydration involves removing water to form covalent bonds between molecules, which is the opposite of hydrolysis and results in larger compounds.
D. Hydratic: Hydratic is not a recognized term in chemistry for describing bond-breaking reactions, and it does not apply to hydrolytic processes.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is False
Explanation
False: While many fungal infections in humans are superficial, such as athlete’s foot and ringworm that affect the skin, fungi are not limited to infecting only the skin. Fungi can cause a wide range of infections, from superficial skin infections to systemic diseases affecting the lungs, bloodstream, and internal organs, especially in immunocompromised individuals.
Correct Answer is D
Explanation
A. shape: Viruses are classified by their capsid shape, which may be helical, icosahedral, or complex. This structural feature is a key criterion in viral taxonomy.
B. type of nucleic acid: Viral classification depends on whether the genome is DNA or RNA, single-stranded or double-stranded, and positive- or negative-sense.
C. size: The physical size of viruses, ranging from about 20 nm to 300 nm, is one of the factors used in classification.
D. ribosome size: Viruses do not contain ribosomes, as they rely on the host cell’s protein synthesis machinery. Therefore, ribosome size is not a characteristic used in viral classification.
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