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प्रश्न
The largest gland in the human body is ______.
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उत्तर
The largest gland in the human body is liver.
APPEARS IN
संबंधित प्रश्न
Match the items of Column I with suitable items in Column II.
| Column I | Column II | ||
| (a) | Salivary gland | (i) | Bile juice secretion |
| (b) | Stomach | (ii) | Storage of undigested food |
| (c) | Liver | (iii) | Saliva secretion |
| (d) | Rectum | (iv) | Acid release |
| (e) | Small intestine | (v) | Digestion is completed |
| (f) | Large intestine | (vi) | Absorption of water |
| (vii) | Release of faeces |
Name any four life processes in living things.
In human digestive system, bile is secreted by:
(a) pancreas
(b) liver
(c) kidneys
(d) stomach
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
If the teeth are not cleaned regularly, they become covered with a sticky yellowish layer W of food particles and bacteria. Since layer W covers the teeth, the alkaline liquid X secreted by glands Y inside the mouth cannot reach the teeth surface to neutralise the acid formed by the action of organisms Z on sugary food, and hence tooth decay sets in.
(a) What is W known as?
(b) What is (i) X, and (ii) Y?
(c) What are organisms Z?
(d) State one way of removing layer W from the teeth.
How is thorough chewing of food helpful in digestion?
Why is the small intestine the most important organ of the digestive system?
Give any four reasons why water is necessary in our body.
Write the function of the following in the human alimentary canal:
Villi
Put a tick (✓) against the most appropriate alternative in the following statement.
Saliva converts starch into:
Fill in the blanks.
The ______ and ______ are used for crushing and grinding the food.
Rewrite the following parts of the human alimentary canal in their correct sequence Stomach, Oesophagus, Large instestine, Small intestine, Pharynx.
Describe the human salivary gland.
Select the correct pair of peptide hormones secreted by the alimentary canal.
Name the organism which lives in the digestive system of human ______.
Which part of the alimentary canal receives bile from the liver?
How do carbohydrates, proteins and fats get digested in human beings?
Read the following passage carefully and answer the questions that follow it.
| Bile juice is stored in a sac called, gall bladder, located near its organ of secretion, liver. The gall bladder releases the bile juice into the small intestine whenever food reaches there. Though bile juice is devoid of any digestive enzymes, it is required for the digestion of fats. The fats cannot be digested easily because they are insoluble in water and are present as large globules. Bile juice breaks down big fat droplets into smaller droplets. These are then easily digested by the enzymes released from the pancreas. |
- Which organ secretes the bile juice?
- Why is digestion of fats difficult as compared to that of other nutrients?
- How does bile juice help in the digestion of fat?
- Where is the digestion of fat completed?
- Does bile juice digest fat completely?
Statement I - The muscularis of intestine can be differentiated into longitudinal and oblique muscles only.
Statement II - The muscularis of stomach is made up of outer- longitudinal, middle oblique and inner circular muscles.
In light of above statements, choose the most appropriate answer from the option given below.
