In digestion, which option best describes a bolus?
In digestion, which option best describes a bolus?
पाचन के संदर्भ में, बोलस (bolus) का सर्वोत्तम वर्णन निम्नलिखित में से किस विकल्प द्वारा किया जाता है?
Detailed Solution & Logic
A food-and-saliva mixture formed while chewing/ चबाने के दौरान बनने वाला भोजन और लार का मिश्रण
Explanation :
A bolus is a soft, rounded mass of food that is formed in the mouth after food is chewed and mixed with saliva before being swallowed.
बोलस (Bolus) भोजन का नरम गोला होता है, जो भोजन को चबाने और लार के साथ मिलाने पर मुख (mouth) में बनता है, फिर इसे निगला जाता है।
Saliva is secreted by the salivary glands and contains the enzyme Salivary amylase (ptyalin).
लार लार ग्रंथियों द्वारा स्रावित होती है और इसमें सैलिवरी एमाइलेज (प्टायलिन) एंजाइम होता है।
This enzyme starts the digestion of starch/carbohydrates.
यह स्टार्च/कार्बोहाइड्रेट के पाचन की शुरुआत करता है।
The bolus then passes through the Esophagus to the Stomach.
इसके बाद बोलस ग्रासनली के माध्यम से आमाशय में जाता है।
Why other options are incorrect / अन्य विकल्प गलत क्यों हैं:
❌ Hormone secreted by stomach → Example: Gastrin
❌ Enzyme produced by pancreas → Example: Pancreas produces trypsin, lipase, etc.
❌ Digestive fluid secreted in intestines → This refers to intestinal juice.
Extra Fact / अतिरिक्त तथ्य:
In the stomach, bolus changes into a semi-liquid paste called Chyme.
आमाशय में बोलस बदलकर अर्ध-द्रव पदार्थ काइम (Chyme) बन जाता है।
Correct Answer: A food-and-saliva mixture formed while chewing / चबाने के दौरान बनने वाला भोजन और लार का मिश्रण
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