Question

Students hypothesized that adding ______________to a sixth test tube would produce the greatest amount of carbon dioxide

Answer 1

Yeast, sugar(lactose) and warm water.

Step-by-step explanation:

Cellular respiration is the respiration that occurs when sugar reacts with oxygen to produce Carbondioxide, water and energy in the form of ATP that is;

Sugar + oxygen ----> Carbondioxide + water.

C6H12O6 + 6O2 -----> 6CO2 + 6H2O + ATP.

It must be noted that the reversed of Respiration reaction is known as the photosynthesis.

Therefore, in the sixth test tube when we have warm water and yeast and the sugar we will have great amount of Carbondioxide generated.

Answer 2

Warm water, yeast, and lactose.

Step-by-step explanation:

Actually, this question is incomplete because the whole scenario of experiment is not given but the actual scenario is mentioned below.

Some students were doing experiment on cellular respiration and they used the baking yeast to check the fermentation rate. They used different variable with yeast to produce the high amount of carbon dioxide bubbles in a test tube. So, addition of warm water, yeast and lactose will produce the carbon dioxide in greatest amount.