Read the following paragraph carefully and answer the following
questions [1×4 =4]
The main organs that make up the digestive system (in order of their function)
are the mouth, oesophagus, stomach, small intestine, large intestine, rectum and
anus. Helping them along the way are the pancreas, gall bladder and liver. The
mouth is the beginning of the digestive tract. In fact, digestion starts before you
even take a bite. Your salivary glands get active as you see and smell that pasta
dish or warm bread. After you start eating, you chew your food into pieces that
are more easily digested. Your saliva mixes with the food to begin to break it
down into a form your body can absorb and use. When you swallow, your
tongue passes the food into your throat and into your oesophagus.
A series of muscular contractions within the oesophagus called peristalsis
delivers food to your stomach.
Stomach is where protein digestion of food takes place by pepsin enzyme. From
there, food moves into the small intestine - where complete digestion of food
occurs.
Most nutrients are absorbed in the small intestine, where food is broken down
even more by enzymes released from the pancreas and bile from the liver.
Anything left in the small intestine moves into the large intestine, which is also
known as the colon.
The colon is a 5- to 7-foot long muscular tube that connects the small intestine
to the rectum. It’s responsible for processing waste. On average, it takes about
36 hours for waste, or stool, to get through the colon and exit the rectum
through the anus.
To summarize, humans show holozoic mode of nutrition with ingestion,
digestion, absorption, assimilation and finally egestion.
1. Mention the function of tongue in digestion of food in human being.
2. Name the other name for large intestine.
3. Which food mainly gets digested in stomach?
4. Write the role of oesophagus in human digestive system.
10
Answers
Answered by
1
Answer:
1.A tongue passes the food into your throat and into your oesophagus.
2.Colon.
3.Protien digestion of food takes place mainly in stomach.
4.When you swallow, your tongue passes the food into your throat and into your oesophagus.A series of muscular contractions within the oesophagus called peristalsis delivers food to your stomach.
Explanation:
Hope this helps you.
Answered by
2
Answer:
Its main function is the exchange of gases by opening and closing the pores in the leaves. - It helps in removing water from the leaves. - It takes carbon dioxide and gives out oxygen during the process of photosynthesis. ... Stomata facilitates gaseous exchange
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