Which of the following glandular secretions involved in digestion would be most likely released initially as inactive precursors ?
(1) protein-digesting enzymes
(2) fat-solublizing bile salts
(3) acid-neutralising bicarbonate
(4) hormones such as gastrin
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat prevents the backflow of fecal matter into the small intestine?
1. Ileo-caecal valve
2. Sphincter of Boyden
3. Meckel's diverticulum
4. Plicae semilunaris
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe parietal cells or the oxyntic cells located in the stomach's gastric pits mainly secrete:-
1. HCI and Intrinsic factor
2. Pepsinogen and Gastric lipase
3. Pepsinogen and Pro-rennin
4. Gastrin and Mucus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe mucosal layer in the stomach form irregular folds known as:-
1. villi
2. lumen
3. rugae
4. crypts of Lieberkuhn
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhat regulates the opening of oesophagus into the stomach?
1. A membranous valve
2. A muscular sphincter
3. A mesodermal septum
4. A cartilaginous flap
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyMatch each item in Column I with one item in Column II and chose your answer from the codes given below:
Column I (vitamin) |
Column II (source) |
I. A II. B1 III. PP IV. C |
1. cereals 2. carrot 3. citrus fruits 4. synthesized in human body |
Codes:
I II III IV
1. 1 2 3 4
2. 2 1 4 3
3. 2 1 3 4
4. 1 2 4 3
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich cells of ‘Crypts of Lieberkuhn' secrete antibacterial lysozyme?
(1) Argentaffin cells
(2) Paneth oaks
(3) Zymogen cells
(4) Kupffer cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyA baby boy aged two years is admitted to play-school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
(1) Incisors
(2) Canines
(3) Premolars
(4) Molars
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich of the following guards the opening of hepatopancreatic duct into the duodenum ?
(1) Illeocaecal valve
(2) Pyloric sphincter
(3) Sphincter of Oddi
(4) Semilunar valve
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn the stomach, gastric acid is secreted by the:-
(1) parietal cells
(2) peptic cells
(3) acidic cells
(4) gastrin secreting cells
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology