Some bakers of sourdough and a few other types of bread have what they call “starter dough.” This dough contains yeast from which they make all their bread. Some starter dough is more than 100 years old. The dough has to be “fed” more flour and water on a regular basis for it to remain usable. Why must the starter dough be “fed”?

When maintained at room temperature and fed daily, your sourdough starter will always be ready to use for baking. Use the starter to prepare bread dough within 3-4 hours of being fed, to ensure the starter is at its peak of activity.

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answer: 4

explanation: 8

lysosome is this part of the cell is surrounded by a very thick outer membrane to protect the rest of the cell from its strong enzymes.