4
Question
Assertion : Adult human being is not perfect in digestion of milk.
Reason: With age, man produces little or no lactase in the intestinal juice.
Assertion : Adult human being is not perfect in digestion of milk.
Reason: With age, man produces little or no lactase in the intestinal juice.
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Solution
The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
The human being is the only mammal who ingests significant amount of lactose in milk. Curiously, many human adults can not digest milk, because with age they produce little or no lactose in the intestinal juice. In such persons, the lactose of milk remains undigested and is fermented in the intestine producing gases and acids. This results in flatulence, intestinal cramps and diarrhoea.
Adult human
↓
Less or no lactase
↓
Lactose remains undigested
↓
Undigested substances fermented
↓
Produce gas, acids, intestinal cramps, diarrhoeaSo, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.
The human being is the only mammal who ingests significant amount of lactose in milk. Curiously, many human adults can not digest milk, because with age they produce little or no lactose in the intestinal juice. In such persons, the lactose of milk remains undigested and is fermented in the intestine producing gases and acids. This results in flatulence, intestinal cramps and diarrhoea.
Adult human
↓
Less or no lactase
↓
Lactose remains undigested
↓
Undigested substances fermented
↓
Produce gas, acids, intestinal cramps, diarrhoea
So, the correct answer is 'Both Assertion and Reason are correct and Reason is the correct explanation for Assertion'.
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