Which macromolecules are not formed by polymerization:
Lipids
Proteins
Carbohydrates
Nucleic acid
The Correct Answer is A
A. Lipids: Lipids are not formed by polymerization of repeating monomers; they are assembled from smaller components (e.g., glycerol and fatty acids) and form diverse structures.
B. Proteins: Proteins are polymers of amino acids linked by peptide bonds.
C. Carbohydrates: Many carbohydrates (polysaccharides) are polymers of monosaccharide units.
D. Nucleic acid: Nucleic acids (DNA and RNA) are polymers of nucleotide monomers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Identification: The practical process of recognizing and naming an organism, not the name of the science itself.
B. Classification: The process of grouping organisms based on shared characteristics; it is a component of the broader science.
C. Taxonomy: The scientific study of naming, describing, and classifying organisms -the formal name of the science.
D. Nomenclature: The set of conventions and rules used within taxonomy for assigning names to organisms.
Correct Answer is B
Explanation
A. Carbohydrate: Carbohydrates serve as energy sources and structural components but are not the predominant organic macromolecule by mass.
B. Protein: Proteins make up the largest proportion of cell organic material by mass and perform the majority of structural and functional roles.
C. Lipid: Lipids are important for membranes and energy storage but are not the predominant organic component overall.
D. None of the above: Not applicable because one of the listed categories (proteins) is the predominant organic molecule in cells.
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