What would you say is true of the following reaction:
maltose (C12H22O13) + H2O -> glucose (CH12O) + glucose (C2H12O)
it is a decomposition dehydration reaction
it is an anabolic reaction
it is an exchange reaction
it is a decomposition hydrolysis reaction
it is a synthesis dehydration reaction
The Correct Answer is D
A. it is a decomposition dehydration reaction: Dehydration removes water, but this reaction adds water (H₂O).
B. it is an anabolic reaction: Anabolic reactions build larger molecules from smaller ones. This reaction is breaking a molecule apart.
C. it is an exchange reaction: Exchange reactions involve swapping parts between molecules—not just splitting.
D. it is a decomposition hydrolysis reaction: This is a decomposition (breaking down) reaction using hydrolysis (water added to break bonds).
E. it is a synthesis dehydration reaction: That would involve joining molecules together and removing water, which is not the case here.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. contain marker molecules to recognize self cells: Glycoproteins serve as cell identity markers to help the immune system distinguish “self” from “non-self.”
B. to act as the skeleton of the cell: The cytoskeleton, not membrane proteins, acts as the structural support inside the cell.
C. serve as ion channels: Membrane proteins act as channels to allow specific ions to pass through the membrane.
D. act as carrier proteins: Carrier proteins help transport substances across the membrane, often against a concentration gradient.
Correct Answer is C
Explanation
A. anaphase – sister chromatids are pulled to separate ends of the cell: During anaphase, sister chromatids separate and move to opposite poles.
B. metaphase – chromosomes line up at the center of the cell: In metaphase, chromosomes align at the metaphase plate.
C. telophase – nuclear envelope is breaking down; chromosomes are condensing: In telophase, the nuclear envelope is reforming, and chromosomes are de-condensing into chromatin. The description given fits prophase, not telophase.
D. interphase – cell is going about its daily business, at the end DNA is duplicated and starts condensing: During interphase, the cell grows and replicates DNA in preparation for mitosis.
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