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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता ११ वी

Answer the following question. Small Intestine is very long and coiled. Even if we jump and run, why it does not get twisted? What can happen if it gets twisted?

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प्रश्न

Answer the following question.

Small Intestine is very long and coiled. Even if we jump and run, why it does not get twisted? What can happen if it gets twisted?

टीपा लिहा
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उत्तर

  1. Mesentery is a tissue that is located in the abdomen. It attaches the small intestine to the wall of the abdomen and keeps it in place and therefore it does not get twisted while running and jumping.
  2. If small intestine gets twisted, the affected spot may block the food, liquid passing through it. It may sometimes cut off the blood flow if the twist is very severe. If this happens the surrounding tissue may die and can cause serious problems.
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पाठ 14: Human Nutrition - Exercise [पृष्ठ १७२]

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बालभारती Biology [English] Standard 11 Maharashtra State Board
पाठ 14 Human Nutrition
Exercise | Q 2. (D) | पृष्ठ १७२

संबंधित प्रश्‍न

Fat is completely digested in the ______.


Define holozoic nutrition.


Name the main organs of the human digestive system.


Gastric juice contains


Study the following dental formula and then answer the question that follow:

`"i"  3/4   "c"   0/0   "pm"   0/1   "m"   1/1`

State the total number of teeth present in the dentition. 


Answer the following question.
Write two different ways in which glucose is oxidized to provide energy in the human body. Write the products formed in each case.


Write the function of the following in the human alimentary canal:

Saliva


Write four sequential steps of the procedure of the experiment "Preparing a temporary mount of a leaf peel to show stomata".


Fill in the blanks.

Incisors are used for _____ and _____ the food.


Fill in the blank.

In an adult human, there are a total of ___ teeth.


State whether the following statement is True or False.

Wisdom tooth appears at the age of 5-6 years when the child starts going to school.


What do you mean by the absorption of food?


Rewrite the following parts of the human alimentary canal in their correct sequence Stomach, Oesophagus, Large instestine, Small intestine, Pharynx.


Fill in the blank.

Saliva contains salivary amylase which changes starch to _____.


Write true or false for the below statement. Rewrite the false statements correctly

Pancreatic juice does not contain any enzyme.


Find the odd one out. Give reasons for your choice.


Define with examples: Heterotrophs


Name different steps involved in animal nutrition. Explain.


Observe the diagram given alongside and answer the following:

  1. Name the parts numbered 1-8.
  2. Which parts shown in the diagram are non-living?
  3. Is the tooth suited for cutting, tearing or grinding?
  4. What is the function of parts 8 and 7?
  5. What is the total number of teeth present in adult human beings?
  6. Write the dental formula of human beings.


Describe the following: Emulsification


A group of organs together make up an ______ system.


Circle the odd one.


The other name of food pipe is alimentary canal.


Bile helps in the digestion of ______.


All are functions of the liver, EXCEPT


Match the two columns and select correct option.

  Column - I   Column - II
i. Sphincter of Oddi a. Oesophagus and stomach
ii.

Ileo-caecal 

sphincter

b. Stomach and small intestine
iii. Pyloric sphincter c Ileum and caecum
iv.

Gastro-oesophageal

sphincter 

d. Opening of hepato- pancreatic duct

Select the correct pair of peptide hormones secreted by the alimentary canal.


List the glands associated with digestion.


Given below from (i) to (iv) are some food items.

  1. Boiled and mashed potato
  2. Glucose solution
  3. A slice of bread
  4. Mustard oil

Which of the above will give a blue-black colour when tested with iodine?


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