EASY
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Assertion : Thick layers of muscles are present in the wall of alimentary canal.

Reason : These muscles help in the mixing of food materials with the enzymes coming from different glands in the alimentary canal.

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Important Questions on Human Nutrition

EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal

Following are different layers in the wall of the alimentary canal of man
I) Longitudinal muscles
II) Mucosa
III) Serosa
IV) Circular muscles
V) Submucosa

Arrange them in the correct sequence from the outer to the inner side

EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
The proteolytic enzyme rennin is found in:
MEDIUM
Biology>Human Physiology>Human Nutrition>Alimentary Canal
In a T. S. of the human small intestine, serosa is the outermost layer and is made up of a thin __A__. Muscularis is formed by the smooth muscles arranged outer __B__ and inner __C__. Sub-mucosa is formed by the __D__. Mucosa is the innermost layer made of __E__.
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
The crypts of Lieberkuhn are found in which one of the following parts of the human digestive tract?
MEDIUM
Biology>Human Physiology>Human Nutrition>Alimentary Canal
A baby boy aged two years is admitted to playing school and passes through a dental check-up. The dentist observed that the boy had twenty teeth. Which teeth were absent?
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
Which ONE of the following is NOT a function of the small intestine?
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
Intrinsic factor that helps in the absorption of vitamin B12 is secreted by:
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
Identify the correct statement with reference to human digestive system.
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
Which cells of 'Crypts of Lieberkuhn' secrete antibacterial lysozyme?
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
Match the following structures with their respective location in organs:
  Column – I   Column – II
(a) Crypts of Lieberkuhn (i) Pancreas
(b) Glisson’s capsule (ii) Duodenum
(c) Islets of Langerhans (iii) Small intestine
(d) Brunner’s Glands (iv) Liver

Select the correct option.
MEDIUM
Biology>Human Physiology>Human Nutrition>Alimentary Canal
Which of the following statements is not correct?
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
In the digestive system, the pH of the stomach and the intestine, respectively are:
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
The primary dentition in human differs from permanent dentition in not having one of the following types of teeth:
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal

Choose the correct option from the bracket:

The longitudinal folds of the oesophageal mucosa are known as _____. (rugae / sphincters)

EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
_____ is a vestigial organ in man. (Appendix/Liver)
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
_____ teeth is used to pierce and tear the hard food.
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
The central part of each intestinal villus consists of a blind lymph vessels called _____.
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
The undigested food (faeces) enters into the _____ of the large intestine through ileo-caecal valve, which prevents the back flow of the faecal matter.
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal
We have _____ types of teeth.
EASY
Biology>Human Physiology>Human Nutrition>Alimentary Canal

Fill in the blank with the correct answer from the bracket.

_____ is the last part of the large intestine extending from the sigmoid blends to the anal canal. (Colon, Rectum, Caecum)