Which of the following is an organic compound?
hydrochloric acid (HCI)
salt (NaCl)
sucrose (C12H22O11)
water (H2O)
The Correct Answer is C
A. hydrochloric acid (HCl): This is an inorganic acid, lacks carbon-hydrogen bonds.
B. salt (NaCl): Inorganic ionic compound, no carbon present.
C. sucrose (C₁₂H₂₂O₁₁): Sucrose is a carbohydrate (disaccharide), which contains carbon, hydrogen, and oxygen-hallmarks of organic compounds.
D. water (H₂O): Water is essential but inorganic-it contains no carbon.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. nucleus; in the cytoplasm at the ribosomes
Transcription is the process of converting DNA to mRNA and occurs in the nucleus. Translation is the process of reading mRNA to synthesize proteins and occurs at the ribosomes, which are located in the cytoplasm (either free-floating or bound to rough ER).
B. nucleus; in the cytoplasm at the Golgi apparatus
Transcription occurs in the nucleus. But translation does not occur at the Golgi apparatus. The Golgi modifies, packages, and ships proteins, but does not synthesize them.
C. in the cytoplasm at the ribosomes; in the nucleus
This reverses the correct locations. Transcription is not in the cytoplasm, and translation is not in the nucleus.
D. in the cytoplasm at the ribosomes; in the rough endoplasmic reticulum
Transcription does not occur in the cytoplasm. While translation can occur on ribosomes attached to the rough ER, that’s a subset of ribosomes. The general location of translation is in the cytoplasm.
Correct Answer is C
Explanation
A. 46; haploid: A cell with 46 chromosomes is diploid, not haploid.
B. 23; diploid: A diploid cell has two sets of chromosomes—23 from each parent, totaling 46.
C. 46; diploid: Human somatic (body) cells contain 46 chromosomes (2n)—this is the diploid state.
D. 23; haploid: 23 chromosomes is the haploid number, found in gametes (sperm and eggs), not somatic cells.
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