Aw look they're holding hands! This image shows the molecular structure of maltose, which means the two smaller units bonded together in the image are...

Question

BlackTom AI · Accepted Answer

To approach this question, I first identify what maltose is comprised of in biochemistry. Maltose is a disaccharide formed by two monosaccharide units linked together by a glycosidic bond. The image description mentions maltose and asks which two smaller units are bonded to form it.
Option 1: 'glucose and glucose' — This is the correct pairing because maltose is indeed composed of two glucose molecules joined by an α-1,4-glycosidic bond, making this the accurate depiction of maltose's subunits.
Option 2: 'lactose and galactose' — Lactose is the disaccharide made from glucose and galactose, not two glucose units. Pairing lactose with galactose here would describe lactose-related structure, not maltose, so this is incorrect.
Option 3: 'fructose and glucose' — This pairing would describe sucrose (glucose + fructose) or other combinations, but not maltose. Maltose does not include fructose, so this is wrong.
Option 4: 'glucose and lactose' — Glucose and lactose are not monosaccharide partners forming maltose; lactose is itself a disaccharide of glucose and galactose. This option incorrectly mixes a monosaccharide with a larger disaccharide, so it is inaccurate for maltose.
In summary, the only combination that matches the known composition of maltose as two glucose units is option 1, glucose and glucose.

Aw look they're holding hands! This image shows the molecular structure of maltose, which means the two smaller units bonded together in the image are...单项选择题

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