Advertisements
Advertisements
प्रश्न
Digestion of starch starts in the stomach.
पर्याय
True
False
Advertisements
उत्तर
This statement is False.
Explanation:
Digestion starts in the mouth. The enzyme amylase in saliva begins breaking down starch into simpler sugars before the food reaches the stomach.
APPEARS IN
संबंधित प्रश्न
How are fats digested in our bodies? Where does this process take place?
The largest gland in the human body is ______.
In human digestive system, the enzymes pepsin and trypsin are secreted respectively by:
(a) pancreas and liver
(b) stomach and salivary glands
(c) pancreas and gall bladder
(d) stomach and pancreas
The inner lining of stomach is protected by one of the following from the harmful effect of hydrochloric acid. This is:
(a) pepsin
(b) mucus
(c) saliva
(d) bile
Which of the following are the correct functions of two components of pancreatic juice trypsin and lipase?
(a) trypsin digests proteins and lipase carbohydrates
(b) trypsin digests emulsified fats and lipase proteins
(c) trypsin digests starch and lipase fats
(d) trypsin digests proteins and lipase emulsified fats
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.
(a) What is (i) gland A (ii) substance B, and (iii) enzyme C?
(b) Name the tube D.
(c) What is the movement E known as?
(d) What are (i) F (ii) G, and (iii) H?
What is the function of rectum?
Mention two ways in which the ileum of the mammal is adapted for the absorption of digested food.
Define the following term :
Omnivore
Complete the following table by filling in the blanks 1 to 8.
|
Organ |
Enzyme |
Food acted upon |
Find product |
|
1 |
Pepsin |
2 |
3 |
| Mouth | 4 | 5 | Disaccharide |
|
6 |
7 |
Maltose |
8 |
________ is the largest gland in the body.
Write True or False in the following statement
Molars help in cutting and tearing food.
Identify and name the four type of teeth shown below and give their functions
Name the three regions of the large intestine.
Fill in the blanks.
Pepsin acts on ________ to change them into _______ and __________.
Describe the following: Digestion of fat in the intestine
How do we know that we are hungry and that we should now eat?
Answer the following question.
Small Intestine is very long and coiled. Even if we jump and run, why it does not get twisted? What can happen if it gets twisted?
Throughout the length of the alimentary canal the layer which shows the presence of goblet cells is ______
Which option represents the CORRECT sequence of digestive organs between the mouth and the anus?
