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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
In which part of the digestive system is water absorbed?
Name the substances on which the following enzymes act in the human digestive system:
(i) Trypsin
(ii) Amylase
(iii) Pepsin
(iv) Lipase
How do carbohydrates, fats and proteins get digested in human beings?
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.
Pylorus is an opening from
Define the term ‘digestion’.
Fill in the blanks.
Grinding of food is brought about by _______ and ______
Write true or false for the below statement. Rewrite the false statements correctly.
Saliva contains lipase which digests carbohydrates
Find the odd one out. Give reasons for your choice
Give reasons for the following.
Meat eating animals have strong canines.
Write short answers
What is dental plaque?
Correct the spellings: Disegion
The question has four options. Choose the correct answer:
The hardest constituent of the tooth is
Give a reason.
Food becomes acidic in the stomach.
Write down the explanation.
Explain the structure of tooth.
The common bile duct and pancreatic form ______.
The enzymes present in the saliva convert ______.
______ is the vestigeal organ in human.
Given below are two columns, Column I shows enzymes secreted by the glands in the alimentary canal of human beings and Column II indicates the components of food on which enzymes act. Choose the options showing correct matching:
How does tooth enamel get corroded? What is the preventive measure for this?
