Nuitrient in Animals Class 7 Science

briefly explain the process of digestion in ruminants

Asked by ANUSHA SHISHIR PA... 3 days, 1 hour ago Subject:Science 3 Answers

The procees of digestion is completedd through four chambers
1)Rumen
2)Reticulam
3)omasumn
4)abomasum
In the first two chambers, the rume and the reticulum, the food is mixed with saliva and separates into layers of solid and liquid material. Solids clump toget her to form the cud or bolus.
The cud is then regurgitated and chewed to completely mix it with saliva and to break down the particle size. Fiber, especially cellulose and hemi-cellulose , is primarily broken down into the three volatile fatty acids (VFAs), acetic acid , propanoic acid and beta-hydroxybutyric acid , in these chambers by microbes (mostly bacteria as well as some protozoa , fungi and yeast ). Protein and non-structural carbohydrate ( pectin , sugars , starches ) are also fermented. then passes into the next chamber, the omasum, where water and many of the inorganic mineral elements are absorbed into the blood stream.
After this the digesta is moved to the true stomach, the abomasum. The abomasum is the direct equivalent of the monogastric stomach (for example that of the human or pig), and digesta is digested here in much the same way. Digesta is finally moved into the small intestine, where the digestion and absorption of nutrients occurs. Microbes produced in the reticulorumen are also digested in the small intestine. Fermentation continues in the large intestine in the same way as in the reticulorumen.
Posted by Kriti Mushnuri(student) 2 days, 23 hours ago

The procees of digestion is completedd through four chambers
1)Rumen
2)Reticulam
3)omasumn
4)abomasum
In the first two chambers, the rume and the reticulum, the food is mixed with saliva and separates into layers of solid and liquid material. Solids clump toget her to form the cud or bolus.
The cud is then regurgitated and chewed to completely mix it with saliva and to break down the particle size. Fiber, especially cellulose and hemi-cellulose , is primarily broken down into the three volatile fatty acids (VFAs), acetic acid , propanoic acid and beta-hydroxybutyric acid , in these chambers by microbes (mostly bacteria as well as some protozoa , fungi and yeast ). Protein and non-structural carbohydrate ( pectin , sugars , starches ) are also fermented. then passes into the next chamber, the omasum, where water and many of the inorganic mineral elements are absorbed into the blood stream.
After this the digesta is moved to the true stomach, the abomasum. The abomasum is the direct equivalent of the monogastric stomach (for example that of the human or pig), and digesta is digested here in much the same way. Digesta is finally moved into the small intestine, where the digestion and absorption of nutrients occurs. Microbes produced in the reticulorumen are also digested in the small intestine. Fermentation continues in the large intestine in the same way as in the reticulorumen.
Posted by Kriti Mushnuri(student) 2 days, 23 hours ago

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Posted by sumedha rai(MeritNation Expert) 9 hours, 12 minutes ago

What is the function os saliva, bile juice,pancreatic juice

Asked by ANUSHA SHISHIR PA... 3 days, 1 hour ago Subject:Science 2 Answers

salivary juice partially digested the carbohydrate.
Bile juice helps in digestion of fat. pancreatic juice is secreted from pancreas that partially digest the protein.
Posted by shrijaya maity(student) 3 days, 1 hour ago

Bile juice is a digestive juice secreted by the liver. Although it does not contain any digestive enzymes, it plays an important role in the digestion of fats. Bile juice has bile salts such as bilirubin and biliverdin. These break down large fat globules into smaller globules in the small intestine so that the pancreatic enzymes can easily act on them. This process is known as emulsification of fats. Bile juice also makes the medium alkaline and activates lipase.
Functions of saliva are:
1) Lubrication and binding of food: It helps in lubrication of food as well as the mouth parts and esophagus for the smooth movement of food.
2) Solubilises the dry food material
3) It keeps the mouth clean
4) Starch digestion: Saliva contains amylases which digest starch. So, starch digestion begins in mouth itself.
5) Provides alkaline environment in mouth.
Pancreatic juice:- The pancreas secretes pancreatic juice which contains enzymes like trypsin for digesting proteins and lipase for breaking down emulsified fats.
Posted by sumedha rai(MeritNation Expert) 9 hours, 35 minutes ago

What is peristalsis? Explain with the help of a digram

Asked by ANUSHA SHISHIR PA... 3 days, 1 hour ago Subject:Science 2 Answers

wave like movement in the foodpipe.
Posted by chalini(student) 14 hours, 13 minutes ago

Kindly refer to the following link given below:- http://www.meritnation.com/discuss/question/5371195/1/what-is-peristalsis Posted by sumedha rai(MeritNation Expert) 10 hours, 6 minutes ago

list and explain in one sentense each, the various processes involved in nutrition in animals.

Asked by ANUSHA SHISHIR PA... 3 days, 1 hour ago Subject:Science 1 Answer

The process occurs in five distinct steps. These are as follows.
1.Ingestion: The process of taking in food through the buccal cavity is known as ingestion.
2.Digestion: It is the process of breaking down food into simpler substances.
3 .Absorption: The process of absorption takes place in the small intestine. Here, the digested food is absorbed in the blood through the villi, which are sac-like structures.
4.Assimilation: The food absorbed by blood is transported to various parts of the body by blood vessels. This process is known as assimilation.
5.Egestion: The process of removing the undigested food material from the body through the anus is known as egestion.
Posted by sumedha rai(MeritNation Expert) 10 hours, 18 minutes ago

list the five steps food undergoes during digestion

Asked by Hitakshi Goyal 3 days, 2 hours ago Subject:Science 2 Answers

the five steps food undergoes during digestion:-
1)ingestion
2)digestion
3)absorbtion
4)assimilation
5)egestion
Posted by Chumki Debnath(student) 3 days, 2 hours ago

The process of digestion occurs in five distinct steps. These are as follows.
1.Ingestion: The process of taking in food through the buccal cavity is known as ingestion.
2.Digestion: It is the process of breaking down food into simpler substances.
3 .Absorption: The process of absorption takes place in the small intestine. Here, the digested food is absorbed in the blood through the villi, which are sac-like structures.
4.Assimilation: The food absorbed by blood is transported to various parts of the body by blood vessels. This process is known as assimilation.
5.Egestion: The process of removing the undigested food material from the body through the anus is known as egestion.
Posted by sumedha rai(MeritNation Expert) 10 hours, 32 minutes ago

explain the function of stomach

Asked by Hitakshi Goyal 3 days, 2 hours ago Subject:Science 4 Answers

Stomach is for digestion of food andstorage of food.
Posted by gopal kaul(student) 3 days, 2 hours ago

it recieves food from the oesophagus & passes it to the small intestine the inner lining of the stomach secretes gastric juice which consists of muscus ,hydrocloric acid & digestive juices
Posted by Chumki Debnath(student) 3 days ago

it recieves food from the oesophagus & passes it to the small intestine the inner lining of the stomach secretes gastric juice which consists of muscus ,hydrocloric acid & PTYALIN
ROLE OF HCL
TO MAKE FOOD FREE FROM GERMS
MUCOUS
PROTECTS FROM HCL
PEPSIN
HELPS IN DIGESTION OF PROTIENS
Posted by rathadawet(student) 2 days, 23 hours ago

Kindly refer to the following link given below:- http://www.meritnation.com/discuss/question/5136081/1/what-is-the-function-of-stomach Posted by sumedha rai(MeritNation Expert) 10 hours, 35 minutes ago

why the teeth in our mouth have different shapes

Asked by Hitakshi Goyal 3 days, 2 hours ago Subject:Science 2 Answers

because it has diffrent properties
Posted by don(student) 3 days, 2 hours ago

Because different shaped teeth performs different functions. For example incisors helps in cutting, canines for tearing, whereas molars and premolars for grinding up the food.
Posted by sumedha rai(MeritNation Expert) 10 hours, 41 minutes ago

whenever i finish a chapter with 100% it always says 'almost there ' ? why?

Asked by arjun mahajan 3 days, 13 hours ago Subject:Science 1 Answer

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Posted by Namrata Jha(MeritNation Expert) 2 hours, 37 minutes ago

cascuta ko hindi mein kya bolte hain??

Asked by sonal 5 days, 3 hours ago Subject:Science 3 Answers

i think amarbel
Posted by tushar oswal(student) 5 days, 2 hours ago

I think it is called as Akasavalli in hindi.
Posted by Aditya Nandy(student) 4 days, 10 hours ago

Cuscuta is called amarbel or akash bel in Hindi.
Posted by Dr Saman Ahmad(MeritNation Expert) 4 days, 9 hours ago

What is amoeba ?

Asked by Satyam verma 5 days, 23 hours ago Subject:Science 2 Answers

Amoeba is a type of a single celled organism which is capable of changing its body shape, it does not have a definite shape. It moves with the help of pseudopodia.
Posted by Beshajaya Ande(student) 5 days, 21 hours ago

Amoeba is a genus of Protozoa [1] consisting of shapeless unicellular organisms .it is a type of single celled organism which is able to change its body shape as it does not have a definite or particular shape.it is able to move with the help of pseudopodia.

why does the small intestine has villis ?

Asked by chaitanya kandari 6 days ago Subject:Science 2 Answers

SMALL INTESTINE HAS VILLI AS THEY INCREASE THE SURFACE AREA FOR THE EFFICIENT ABSORPTION OF THE DIGESTED FOOD.
ENJOYED HELPING U THUMBS UP PLEASE

THE SPELLING OF MUCUS GIVEN IS WRONG IT SHOULD BE MUCUS NOT MUCOUS............ PLEASE LOOK INTO THIS MATTER AS SOON AS POSSIBLE. THANKS.............

Asked by vivek 6 days, 1 hour ago Subject:Science 2 Answers

HII VIVEK
THIS MATTER WOULD BE CORRECTED AS SOON AS POSSIBLE
BYE ;
REGARDS
MERITNATION TEAM
Posted by rathadawet(student) 6 days, 1 hour ago

Actually mucus is noun and mucous is adjective. For example: The secretion that comes out of your nose when you sneeze is 'mucus' and the lining in the nasal cavity that secretes mucus is 'mucous' membrane. So, both the terms can be used depending on the condition.
Posted by Dr Saman Ahmad(MeritNation Expert) 5 days, 9 hours ago

Please tell something about saliva.

Asked by shiwali singh 6 days, 1 hour ago Subject:Science 5 Answers

saliva is secareted in salivary gland. it break down the protien into simple substances.
Posted by srijith .t.n..(student) 6 days, 1 hour ago

SALIVA IS PRODUCED FROM SALIVARY GLAND . IT MAKES THE FOOD SLIPPERY WICH IN TURN HELPS TO SOLLOW
IT HAS AN ENZYME KNOWN AMYLASE WHICH HELP IN BROKEMENT OF STARCH INTO SUGAR NOW WITH THE HELP OF SPECFIC ENZYME WHICH MAKES SUGAR TO SMALL INTESTINE
Posted by rathadawet(student) 6 days, 1 hour ago

its in ur mouth
Posted by shruti singh(student) 6 days, 1 hour ago

its in ur mouth
Posted by shruti singh(student) 6 days, 1 hour ago

In the digestion process, the saliva helps the teeth and tongue to masticate and mix up the food thoroughly. Mucus in saliva helps in lubricating and adhering food particles into a bolus. Then the bolus conveyed to pharynx for further digestion. The enzymes present in saliva breakdown the starch present in the food we eat. Starch (carbohydrates) is digested in the mouth by the salivary enzyme, Ptyalin or salivary amylase. Ptyalin breaks down starch into simple sugars like glucose. Lysozyme present in saliva acts as an antibacterial agent that prevents infection.
Posted by Dr Saman Ahmad(MeritNation Expert) 5 days, 10 hours ago

what is gall bladder and writeits functions

Asked by Hitakshi Goyal 6 days, 3 hours ago Subject:Science 3 Answers

the bile juice which is secreted by the liver is stored in the gall bladder
Posted by Swami nathan(parent) 6 days, 3 hours ago

gall bladder IS IN LIVER IT SECRETES BILE JUCE WHICH HELP IN THE EMULCIFICATOIN OF FAT
Posted by rathadawet(student) 6 days, 1 hour ago

Gall bladder is a small organ lying just below the liver and it stores the bile juice released from the liver when it is not needed. The bile juice is then released from the gall bladder to the duodenum of small intestine for the digestion of fats.

Posted by Dr Saman Ahmad(MeritNation Expert) 5 days, 10 hours ago

what are the steps ivolved in alimentation

Asked by PRADEEP KUMAR 1 week, 1 day ago Subject:Science 1 Answer

Alimentation is the process of obtaining nutrition. It is divided into 4 stages:
1) The preparatory stage (Mastication)
2) The oral stage (Propulsion of bolus)
3) The pharyngeal stage (Swallowing)
4) The esophageal stage
Posted by Ritika Goyal(MeritNation Expert) 5 days, 9 hours ago