Advertisements
Advertisements
प्रश्न
Who is telling a lie?
Tongue: My taste-buds can tell only a sweet taste.
विकल्प
Truth
Lie
Advertisements
उत्तर
Lie
Explanation:
The tongue can taste salt, sweet and bitter tastes.
संबंधित प्रश्न
The gall bladder temporarily stores bile.
Name the enzyme present in human saliva. What type of food material is digested by this enzyme?
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?
With which human organ system (or human systems) is villi associated?
Define the following term:
Peristalsis
Study the following dental formula and then answer the question that follow:
`"i" 3/4 "c" 0/0 "pm" 0/1 "m" 1/1`
Name an animal possessing such a dentition.
Fill in the blanks.
Incisors are used for _____ and _____ the food.
Fill in the blanks.
The ______ and ______ are used for crushing and grinding the food.
Fill in the blank.
The human teeth appear in two sets, the first set is called primary which consists of only _______ teeth
Write true or false for the below statement. Rewrite the false statements correctly.
The pancreas secretes bile juice
What do you mean by nutrition?
Who is telling a lie?
Appendix: Digestion is impossible without me.
How do the salivary glands come to know that there is food in the mouth and it is time to secrete saliva?
Analogy
Enzymes: Digestive glands:: _______: Endocrine glands.
The passage of food into the stomach is controlled by the ______.
The coiled middle portion of the small intestine which is 2.5 meters long is the ______.
Explain the role of the mouth in digestion of food.
Urea is a main excretory product in humans. How is it formed?
In which layer of the wall of alimentary canal, secretary glands are present?
Give two reasons, why bile juice is considered to be an important secretion of liver in the process of digestion?
