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प्रश्न
Give a reason.
Food becomes acidic in the stomach.
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उत्तर
Food becomes acidic in the stomach because of the presence of hydrochloric acid. As the food reaches the stomach, it gets mixed with the hydrochloric acid present there. The hydrochloric acid plays the following roles in digestion:
- It initiates protein digestion by activating the conversion of pepsinogen to pepsin.
- It provides an acidic medium for the activity of pepsin and other enzymes present in gastric juice.
संबंधित प्रश्न
In which part of the digestive system is water absorbed?
Gastric juice contains
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Study the diagram given below and then answer the question that follows:
Name the parts labelled 1, 2, 3, 4, 5 and 6.
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Define the following term:
Digestion
State the four ways in which saliva is useful to us.
Find the odd one out. Give reasons for your choice
Differentiate between.
Mechanical digestion and Chemical digestion
Define with examples: Heterotrophs
Mark odd one in the series:
Who is telling a lie?
Liver: I am the largest gland in the body.
Which systems work together to provide the body with energy?
Describe the alimentary canal of man
Throughout the length of the alimentary canal the layer which shows the presence of goblet cells is ______
In the given histology of the alimentary canal, identify i, ii, and iii.
A gland not associated with the alimentary canal is ____________.
Draw the diagram of the alimentary canal of man and label the following parts. Mouth, Oesophagus, Stomach, Intestine.
Fill in the blanks using the words listed below.
| water, front, intestinal, salts, pseudopodia, back, vacuole |
- The digestion of all food components is completed by the ______ juice.
- Large intestine absorbs ______ and some ______ from the undigested food.
- Tongue is attached at the ______ to the floor of the mouth cavity and is free at the ______.
- Amoeba pushes out ______ around the food and traps it in a food ______.
What is chyme?
