Explain why the enzymes in biological washing powders are trapped inside microscopic capsules?
Important Questions on Biotechnology
Look at the diagram of a fermenter in the following figure. Explain the reason for the addition of carbohydrates and amino acids to the culture?
Look at the diagram of a fermenter in the following figure. Explain the reason for the need to control the temperature in the fermenter?
Look at the diagram of a fermenter in the following figure. Explain the reason for the addition of air, containing oxygen to the fermenter.
Copy and complete these sentences, using the words below. You may use each word once, more than once or not at all.
| amylase | bacterium |
| biofuel | catalase |
| protease | ethanol |
| Bread making | Carbon dioxide |
| oxygen | glucose |
| starch | Sulphur dioxide |
Yeast is a single-celled____. It can respire anaerobically, breaking down glucose to form ____ and the gas _____, _____. To make ethanol for use in _____, yeast is provided with sugars that have come from crops such as maize. To make bread, yeast is mixed with flour and water. The enzyme _____ breaks down starch in the flour, producing _____ that the yeast uses in respiration.This forms _____, ______which makes the bread rise.
