(i) Yeast causes fermentation converting sugar into alcohol and carbon dioxide.
(ii) Carbon dioxide.
(iii) Lime water turns milky.
(i) Write the name of the disease. (ii) Name the causative agent of this disease. (iii) How does the disease spread from one plant to another? (iv) Name any two plant diseases and the microbes that cause them.
(i) Name the microorganism and the group to which it belongs. (ii) Name the food item on which the organism grows. (iii) Does it grow well in dry or in moist conditions? (iv) Is it safe to eat infected bread?
Question
Observe the set-up given below and answer the following questions.
(i) What happens to the sugar solution in A? (ii) Which gas is released in A? (iii) What changes will you observe in B when the released gas passes through it?
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💡 Some Related Questions
Give reasons for the following. (i) Fresh milk is boiled before consumption while processed milk stored in packets can be consumed without boiling. (ii) Raw vegetables and fruits are kept in refrigerators whereas jams and pickles can be kept outside. (iii) Farmers prefer to grow beans and peas in nitrogen deficient soils. (iv) Mosquitoes can be controlled by preventing stagnation of water though they do not live in water.
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