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प्रश्न
What is the role of the acid in our stomach?
State one role of the following in human digestive system:
Hydrochloric acid
उत्तर
- The hydrochloric acid in our stomach dissolves bits of food and creates an acidic medium. In this acidic medium, the enzyme pepsinogen is converted to pepsin, a protein-digesting enzyme.
- It also kills many bacteria and other microorganisms that enter along with the food.
- It creates an acidic environment and activates the digestive enzyme pepsin.
Notes
Students should refer to the answer according to their questions.
संबंधित प्रश्न
Fill in the blank and rewrite the completed statement:
.................... is the largest gland in the body.
The gall bladder temporarily stores bile.
Define a nutrient. Name four important nutrients present in our food.
List in tabular form two differences between pepsin and trypsin.
Why is the small intestine the most important organ of the digestive system?
Define the following term :
Pylorus
Define the following term:
Kilocalorie
Name the following
The organ into which the pancreatic juice and the bile juice are poured
Differentiate between.
Mechanical digestion and Chemical digestion
What do you mean by nutrition?
State whether the following statements are True or false: Na+ is absorbed in intestine by sodium pump.
Mark odd one in the series:
Who is telling a lie?
Appendix: Digestion is impossible without me.
Observe the diagram. This is the histological structure of the stomach. Identify and comment on the significance of the layer marked by an arrow.
Circle the odd one.
A calcified connective tissue from which the basic shape of the tooth is derived is known as ______.
Match the two columns and select correct option.
| Column - I | Column - II | ||
| i. | Sphincter of Oddi | a. | Oesophagus and stomach |
| ii. |
Ileo-caecal sphincter |
b. | Stomach and small intestine |
| iii. | Pyloric sphincter | c | Ileum and caecum |
| iv. |
Gastro-oesophageal sphincter |
d. | Opening of hepato- pancreatic duct |
Select the correct pair of peptide hormones secreted by the alimentary canal.
Read carefully the terms given below. Which of the following set is the correct combination of organs that do not carry out any digestive functions?
How does tooth enamel get corroded? What is the preventive measure for this?
