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Entry of food into trachea is prevented by

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Important Questions on Digestion and Absorption

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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 67
Which of the following is incorrect w.r.t. the function of buccal cavity?
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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 68
The chemical process of digestion is initiated in the oral cavity by the hydrolytic action of ____(i)____ splitting enzyme, the ____(ii)____.
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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 69
Which of the following is incorrect with respect to the digestive function in stomach?
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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 70
Secretin hormone is secreted from
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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 71
Common passage for food and air is
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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 72

Which of the following are correct?

(i) The stomach stores food for 4-5 hours.

(ii) Oxyntic cells present in gastric glands produce the proenzyme pepsinogen.

(iii) HCl provides the acidic pH (pH = 1.8) optimum for pepsin.

(iv) Small amounts of amylases are also secreted by the gastric glands.

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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 73
Which of the following is incorrect with respect to the salivary juice?
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Biology Crash Course NEET>Chapter 16 - Digestion and Absorption>Level 1>Q 74
The hardest substance in the human body is