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प्रश्न
The question has four options. Choose the correct answer:
Teeth present in the upper molar of human beings are
विकल्प
Four
Three
Two
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उत्तर
Four
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संबंधित प्रश्न
What substances are contained in gastric juice? What are their functions?
What is meant by dental caries?
Which of the following is the correct sequence of parts as they occur in the human alimentary canal?
| The partially digested food coming from the stomach of a person enters a long and narrow organ A in his body. The organ A receives the secretion of two glands : liver and pancreas. Liver secretes a greenish-yellow liquid B which is normally stored in the organ C. Pancreas secretes pancreatic juice which contains three digestive enzymes D, E and F. The intestinal juice completes the process of digestion of food. The inner wall of organ A has millions of tiny finger-like projections G which help in the rapid absorption of digested food into blood stream. The undigested part of food then passes into wider tube H which absorbs most of the water from undigested food. The last part of tube H called I stores this undigested food (or waste) for some time. The undigested food is then passed out though opening J as faeces in the process known as K. |
- Name the organ A.
- Name (i) liquid B, and (ii) organ C.
- What are the digestive enzymes D, E and F?
- Name the projections G present on the inner wall of organ A.
- Name (i) tube H (ii) part I (iii) opening J, and (iv) process K.
With which human organ system (or human systems) is the villi associated?
Define the terms 'nutrients'.
Name the hormone that helps in regulating level of sugar in our blood. Name the gland that secrets it.
Gastric juice contains
Write the function of the following in the human alimentary canal:
HCl in stomach
How is the small intestine best suited for the digestion and absorption of food?
Write true or false for the below statement. Rewrite the false statements correctly.
Saliva contains lipase which digests carbohydrates
Put the following processes in their correct sequence of occurrence during digestion.
peristalsis; tongue pushes the food; grinding and mixing saliva; cutting and tearing of food
Give reasons for the following.
Meat eating animals have strong canines.
What do you mean by nutrition?
Mention the different types of nutrition?
Who is telling a lie?
Lung: I play an important role in excretion.
List out the functions of the digestive system.
Circle the odd one.
Which sphincter guards the opening of the hepato-pancreatic duct?
Draw the diagram of the alimentary canal of man and label the following parts. Mouth, Oesophagus, Stomach, Intestine.
