Question

failose QUESTION 9 Which sugar was poorly fermented (ie, which had the slowest rate)? [2 pt] O glucose O maltose fructose O maltotriose QUESTION 10.

Answer 1

The answer is maltotriose.

Explaination:

The maltotriose is a trisachharide sugar which contains three glucose units.

According to many research articles: When glucose, fructose, maltose and maltotriose sugars were subjected to the fermentation, the sugars showed a sequential pattern of fermentation.

Glucose was completely fermented first followed by fructose and maltose. When maltose was completely depleted or fermented, maltotriose started to ferment but at very little extent.

Thus, the maltotriose sugar has the lowest rate of fermentation and so it is said to be poorly fermented sugar.

The rate of fermentation of glucose is highest because its rate of carbon dioxide production is highest followed by sucrose, fructose and maltose as all the sugars transported easily to the cells by facilitated diffusion.

Whereas, the transport of maltotriose across the plasma membrane of yeast cells is supposed to be the important limiting step for its slowest rate of fermentation.