Question

carbohydrates will ferment in the following order from fastest to slowest.
a. glucose > fructose > sucrose > starch > water
b. water > starch > sucrose > fructose > glucose
c. glucose > sucrose > fructose > starch > water
d. sucrose > fructose > glucose > starch > water
what is your strategy?
a. to determine the rate of fermentation, i will measure the change in color of the solution.
b. to determine the rate of fermentation, i will measure the ph of the solution.
c. to determine the rate of fermentation, i will measure the height of the co₂ bubble produced.
d. to determine the rate of fermentation, i will measure the temperature of the solution.

Explanation:

• For the first question: Glucose is a monosaccharide and is fermented fastest. Fructose is also a monosaccharide but has a slightly different structure. Sucrose is a disaccharide (glucose + fructose). Starch is a polysaccharide (many glucose units) and needs to be broken down first. Water is not a carbohydrate and is not fermented. So the order is Glucose > Fructose > sucrose > starch > water.
• For the second question: Fermentation (e.g., in yeast fermentation) produces \(CO_2\). Measuring the height of the \(CO_2\) bubble (which can be in a fermentation tube) is a common way to measure the rate of fermentation. Color change (A) is not a standard measure for fermentation rate. Measuring pH (B) might be related to some acid - producing fermentations but is not as direct as \(CO_2\) measurement. Temperature (D) is an environmental factor affecting fermentation, not a measure of the fermentation rate itself.

Answer:

A. Glucose > Fructose > sucrose > starch > water
C. To determine the rate of fermentation, I will measure the height of the \(CO_2\) bubble produced.