Identify the process: The experiment investigates respiration in yeast. Yeast, when provided with glucose and in the absence of sufficient oxygen (which is implied by the sealed flask and ball

Here's the breakdown for the experiment:

1. Identify the process: The experiment investigates respiration in yeast. Yeast, when provided with glucose and in the absence of sufficient oxygen (which is implied by the sealed flask and balloon setup, leading to anaerobic conditions over time), performs anaerobic respiration, also known as alcoholic fermentation.
2. Products of alcoholic fermentation: The chemical equation for alcoholic fermentation is: $$\text{Glucose} \to \text{Ethanol (alcohol)} + \text{Carbon dioxide} + \text{Energy}$$
3. Analyze the results:
   • The "new compound" formed in the flask is alcohol (ethanol).
   • The "gas produced" that inflates the balloon is carbon dioxide.

Comparing this to the given options:

• A: New compound = alcohol, Gas produced = oxygen (Incorrect gas)
• B: New compound = alcohol, Gas produced = carbon dioxide (Correct)
• C: New compound = lactic acid, Gas produced = oxygen (Incorrect compound and gas)
• D: New compound = lactic acid, Gas produced = carbon dioxide (Incorrect compound)

Therefore, the correct row is B.

B) New compound: alcohol, Gas produced: carbon dioxide