A human somatic cell contains chromosomes, which represents the state
46; haploid
23; diploid
46; diploid
23; haploid
The Correct Answer is C
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. voltage gated ion channels: These open in response to changes in membrane potential, not chemical binding.
B. ligand gated ion channels: Ligands (like neurotransmitters) bind to the channel, causing it to open or close.
C. G-protein complex linked receptor proteins: These are receptors that activate intracellular signaling cascades, not ion channels directly.
D. carrier proteins: Carrier proteins transport substances across membranes but do not form open channels.
Correct Answer is E
Explanation
A. eicosanoids: Eicosanoids (like prostaglandins) are derived from arachidonic acid, not cholesterol.
B. fat soluble vitamins: These are vitamins A, D, E, and K, which are lipids but are not cholesterol-based structures.
C. phospholipids: Phospholipids have a glycerol backbone, fatty acids, and a phosphate group, not a steroid ring structure.
D. fats: Fats (triglycerides) are made of glycerol + three fatty acids, not cholesterol.
E. steroids: Steroids include cholesterol, testosterone, estrogen, and other hormones with a four-ring carbon backbone.
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