Which of the following is mismatched with its building blocks?
carbohydrates -- monosaccharides
lipids -- amino acids
nucleic acids -- nucleotides
carbohydrates -- 5 or 6 carbon ring simple sugars
The Correct Answer is B
A. carbohydrates – monosaccharides: Carbohydrates are built from monosaccharides like glucose or fructose.
B. lipids – amino acids: Lipids are made from fatty acids and glycerol, not amino acids.
C. nucleic acids – nucleotides: DNA and RNA are polymers made of nucleotide building blocks.
D. carbohydrates – 5 or 6 carbon ring simple sugars: Carbohydrates often consist of 5 or 6 carbon sugars such as glucose (C₆) and ribose (C₅).
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. isotonic; nothing: Isotonic means equal solute concentration. 0.9% NaCl is isotonic; 9.0% is much higher, so not isotonic.
B. hypotonic; crenation: A hypotonic solution has less solute than the cell. Crenation (shriveling) occurs in a hypertonic solution.
C. hypertonic; crenation: A 9.0% NaCl solution is hypertonic (more solutes than inside the cell). Water moves out of red blood cells, causing them to shrink or crenate.
D. hypertonic; lysis: Lysis (bursting) occurs in hypotonic solutions, where water enters the cell.
Correct Answer is C
Explanation
A. phenotype – how you express your genes: Match. Phenotype is the physical or observable expression of your genes.
B. allele – alternative forms of a gene: Match. Alleles are different versions of the same gene (e.g., dominant vs. recessive).
C. homozygous – having two different alleles for a trait: Match. Homozygous means two same alleles (e.g., AA or aa). This definition describes heterozygous.
D. genotype – the two distinct genes you have for a trait: Match. Genotype is the combination of alleles (e.g., Aa or AA) you inherit.
E. Incomplete Dominance – two alleles blend together in expression: Match. In incomplete dominance, neither allele is fully dominant, resulting in a blended phenotype.
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