CBSE Class 8 Science
Question 6 of 14
Microorganisms : Friend and Foe — Question 6
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Question Question 2(e)
The bread or idli dough rises because of
- heat
- grinding
- growth of yeast cells
- kneading
growth of yeast cells
Reason — Yeast reproduces rapidly and produces carbon dioxide during respiration. Bubbles of the gas fill the dough and increase its volume.