Sorry for bad handwriting. Answer this please.
Answers
Answer:
(a) Yeast is used in the production of alcohol. Oxygen, sugar and hydrochloric acid are not produced by yeast.
(b) Streptomycin is an antibiotic. Sodium bicarbonate, yeast and alcohol are not antibiotics.(c) Cockroach, butterfly and house fly are arthropods. Malaria is caused by a protozoan, Plasmodium, which has two hosts, human and female Anopheles. When female Anopheles bites the infected person, blood and parasite are ingested and are carried to the other person by the bite of the same mosquito. Thus, it acts as a carrier for the malarial parasite. (d) House flies act as carriers of many communicable diseases. Pathogens are collected by the flies when they hover over organic matter such as faeces, garbage and animal corpses.
Answer:
Yeasts need sugar to grow. They produce alcohol and carbon dioxide from sugar. ... In beer the yeast is needed to produce the alcohol and the carbon dioxide for the brim. In the bread industry, both alcohol and carbon dioxide are formed; the alcohol evaporates during baking.