Baker's yeast

High school (ages 12+)
Food & Cooking

Name:

Date:

Step 1 · Read the article

Open the article and read it at the level above. Then answer the questions below in your own words.

https://smallwhale.org/articles/bakers-yeast

Write what each word means, using the article.

Do not copy the article. Write two things you learned, the way you would explain them to a friend.

Answers below are taken from the article’s stored facts, so they match what the student read.

1. What is the species?Saccharomyces cerevisiae
2. What is the primary metabolic pathway?Anaerobic fermentation producing carbon dioxide and ethanol
3. How does yeast make bread puff up?Yeast eats sugars in dough and makes carbon dioxide gas. The gas gets trapped in the gluten, making the dough expand and become airy.
4. Why does yeast produce gas instead of just sugar?Under low oxygen, yeast ferments sugars into ethanol and carbon dioxide. The gas pushes the dough up while the alcohol evaporates when baked.

Eukaryotic Microorganism: A single-celled organism with a complex cell structure, including a nucleus.
Anaerobic Respiration: Metabolic process that generates energy in the absence of oxygen, often producing alcohol or acids.
Gluten Network: The elastic structure formed by proteins in wheat flour when mixed with water, which traps gas bubbles.