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प्रश्न
Fill in the blank.
Saliva contains salivary amylase which changes starch to _____.
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उत्तर
Saliva contains salivary amylase which changes starch to maltose
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संबंधित प्रश्न
How are fats digested in our bodies? Where does this process take place?
What substance is mixed with food in the mouth during chewing by the teeth?
What is the special name of the contraction and expansion movement which pushes the food further in our digestive tract (or 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.
What are the end products of the digestion of: starch, proteins and fats respectively?
Draw a labelled diagram to show the internal structure of a mammalian tooth with two roots.
State whether the following statements are True or false: Pancreatic amylase digests protein into amino acids.
Describe the digestion of starch.
Give a reason.
Food becomes acidic in the stomach.
Analogy
Enzymes: Digestive glands:: _______: Endocrine glands.
