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

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

Write down 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. $\dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots \dots$

Agave nectar contains three different sugars: glucose, fructose, and sucrose. Different strains of bacteria can ferment different sugars to produce biofuel. Scientists investigate how two different bacterial strains, Strain X and Strain Y, ferment sugars in agave nectar.

Look at their results:

Draw on this

Which sugar is not fermented by either strain of bacteria?

• Fructose
• Glucose
• Sucrose

After 30 hours, how many times higher is the biofuel yield of Strain X compared to Strain Y?

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

Which sugar would increase fermentation the most if added to both Strain X and Strain Y?

• Fructose
• Glucose
• Sucrose

Fermented agave is used to supply both fructose and biofuel. Explain why it would be best to use Strain Y to ferment agave nectar to supply both fructose and biofuel.