OBJECTIVE LIFE SCIENCE
BIOTECHNOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Biotechnology is developing a new source for rennin. The old way to get rennin was from:
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Sheep liver extract.
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Inside a calf’s stomach.
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Ground horses hooves.
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Lemon peels.
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Explanation:
Detailed explanation-1: -rennin, also called chymosin, protein-digesting enzyme that curdles milk by transforming caseinogen into insoluble casein; it is found only in the fourth stomach of cud-chewing animals, such as cows.
Detailed explanation-2: -Extraction of calf rennet Calf rennet is extracted from the inner mucosa of the fourth stomach chamber (the abomasum) of young, nursing calves as part of livestock butchering.
Detailed explanation-3: -Animal rennet is an enzyme obtained from the fourth stomach of an unweaned calf (this can include veal calves, or even lamb and kid) but is nowadays available in a liquid form (though some still traditional producers – e.g. Beaufort – still use strips of dried stomach).
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