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प्रश्न
State whether the following statements are True or false: Enteropeptidase activates pepsinogen into pepsin.
विकल्प
True
False
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उत्तर
False
APPEARS IN
संबंधित प्रश्न
Fill in the blank and rewrite the completed statement:
.................... is the largest gland in the body.
In which part of the digestive system is water absorbed?
When a person eats sugary food, then organisms A present in his mouth act on sugar to produce a substance B. The substance B first dissolves the calcium salts from the top part C of the tooth and then from its middle part D forming holes E. These holes ultimately reach the part F in the lower part of tooth which contains nerves and blood vessels. The substance B irritates the nerve endings inside the tooth causing toothache.
(a) What are (i) organisms A, and (ii) substance B?
(b) What are (i) part C, and (ii) part D, of tooth known as?
(c) By what name are the holes E in the tooth known?
(d) Name the part F of the tooth.
(e) What will happen if organisms A reach part F of the tooth known?
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.
Fill in the blank.
The _______ is a common opening of food pipe and windpipe
Fill in the blanks.
The ______ and ______ are used for crushing and grinding the food.
Define the following term:
assimilation
Differentiate between.
Mechanical digestion and Chemical digestion
State one difference in nutrition: Holozoic and Saprozoic nutrition
Describe the human salivary gland.
The question has four options. Choose the correct answer:
The ileum is characterized by
The question has four options. Choose the correct answer:
Monophyodont teeth occur in
Who is telling a lie?
Lung: I play an important role in excretion.
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?
Analogy
Enzymes: Digestive glands:: _______: Endocrine glands.
The exit of unabsorbed food material is regulated by ____________.
Label the following parts in Figure and name them.
- The largest gland in our body.
- The organ where protein digestion starts.
- The organ that releases digestive juice into the small intestine.
- The organ where bile juice gets stored.
______ is the vestigeal organ in human.
What is chyme?
