Complete the word equation for anaerobic respiration in human muscle cells.

$glucose⟶\dots \dots \dots \dots \dots$

State two ways in which anaerobic respiration in human muscle cells is different from anaerobic respiration in yeast cells.

1. $\dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots$

2. $\dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots$

Sugar beet extract contains three different sugars: glucose, fructose, and maltose. Different strains of bacteria can ferment different sugars to produce biobutanol. Scientists investigate how two different bacterial strains, Strain A and Strain B, ferment sugars in sugar beet extract.

Look at their results:

Draw on this

Which sugar is not fermented by either strain of bacteria?

• Fructose
• Glucose
• Maltose

After 40 hours, how many times higher is the biobutanol yield of Strain A compared to Strain B?

$Number\; of\; times\; higher=\dots \dots \dots \dots \dots$

Which sugar would increase fermentation the most if added to both Strain A and Strain B?

• Fructose
• Glucose
• Maltose

Fermented sugar beet extract is used to supply both fructose and biobutanol. Explain why it would be best to use Strain B to ferment sugar beet extract to supply both fructose and biobutanol.