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प्रश्न
The stomach releases hydrochloric acid and ______ juices which act on food.
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उत्तर
The stomach releases hydrochloric acid and digestive juices which act on food.
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संबंधित प्रश्न
Label the following figure of the digestive system.
A part of the human digestive system
The length of small intestine in a human adult is about ______.
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is ______.
| When a person puts food in his mouth, then teeth cut it into small pieces, chew and grind it. The glands A in the mouth secrete a substance B which is mixed with the food by tongue. The substance B contains an enzyme C which starts the digestion of food in the mouth. The slightly digested food from the mouth goes down a tube D. The special type of movements E in the walls of tube D push the food into stomach for further digestion. The stomach wall secretes gastric juice containing three substance F, G and H. One of the functions of F is to kill bacteria which may enter the stomach with food. The substance G protects the inside layer of stomach from the damaging effect of substance F whereas substance H is and enzyme for digestion. The partially digested food then enters into small intestine for further digestion. |
- What are (i) gland A, (ii) substance B, and (iii) enzyme C?
- Name the tube D.
- What is the movement E known as?
- What are (i) F, (ii) G, and (iii) H?
What is roughage? Give two examples.
Fill in the blank.
The teeth called ______ are a total of four in number on the sides of incisors
Name the following
The organ where protein digestion-begins
State whether the following statement is True or False.
The ducts from the salivary glands open into the duodenum.
Write true or false for the below statement. Rewrite the false statements correctly.
The removal of faeces through the anus is called excretion.
Find the odd one out. Give reasons for your choice
Write short answers
What is ingestion?
Complete the following enzymatic reaction.
Sucrose \[\ce{->[sucrase]}\] ___________+ __________
State whether the following statements are True or false: Enteropeptidase activates pepsinogen into pepsin.
Match items in column A with the appropriate items in Column B:
| Column A | Column B | ||
| 1 | HCl | a | Lactose |
| 2 | Rennin | b | Pellagra |
| 3 | Enteropeptidase | c | Rumen |
| 4 | Cellulose | d | Pepsin |
| 5 | Ptyalin | e | Starch |
| 6 | Vitamin | f | Pernicious anaemia |
| 7 | Intestinal juice | g | Trypsin |
| 8 | Bile salt | h | Casein |
| 9 | Vitamin A | i | Micelle |
| 10 | Goitre | j | Night-blindness |
| k | Iodine | ||
Correct the spellings: Pespin
The coiled middle portion of the small intestine which is 2.5 meters long is the ______.
Given below from (i) to (iv) are some food items.
- Boiled and mashed potato
- Glucose solution
- A slice of bread
- Mustard oil
Which of the above will give a blue-black colour when tested with iodine?
What is a vermiform appendix?
