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CBSE Questions for Class 5 Evs From Tasting To Digestion Quiz 1 - MCQExams.com
CBSE
Class 5 Evs
From Tasting To Digestion
Quiz 1
Which of the following is not a type of taste?
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Sour
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Bitter
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Umami
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None of the above
Explanation
A. Sour is found on the sides of the tongue.
B. Bitter is found on the base of the tongue.
C. Umami or savoriness found on all region of the tongue.
So, the correct answer is 'None of the above'.
On which part of the tongue, most of the taste get detected?
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Front
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Back
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Left
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Right
Explanation
The taste buds for "sweet" are on the tip of the tongue; the "salt" taste buds are on either side of the front of the tongue; "sour" taste buds are behind this; and "bitter" taste buds are way in the back.
Most of the taste gets detected in the front part of the tongue because most of the taste buds are present in the front region of the tongue.
So, the correct answer is 'Front'.
Sheela's mother said eat slowly and chew the food properly. Why did Sheela's mother say this statement?
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It helps in respiration.
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It is a good timepass.
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It helps in proper digestion of food.
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None of the above.
Explanation
Chewing is an important step in digestion and further absorption of vital nutrients. The action of chewing helps to break down our food mechanically into a finer texture, thus increasing the surface area for saliva to do its work.
So the correct option is C.
Identify the taste of karela.
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Sour
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Salty
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Bitter
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Spicy
Explanation
The taste of karela is bitter because it contains a compound called lectin. Lectin reduces blood glucose concentrations by acting on peripheral tissues and suppressing appetite. Hence the taste of karela is bitter.
So, the correct answer is 'Bitter'.
Seema is feeling weak and dizzy. Her father gave her magical drink and she felt energetic. What is that magical drink?
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Sugar solution only
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Salt solution only
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Sugar and salt solution
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Plain water
Explanation
Dehydration happens when the body doesn't have as much water as it needs. Symptoms include increased thirst, headache, dry skin, dizziness, sleepiness, decreased urine output, dry mouth, etc.
Oral rehydration therapy (ORT) is a type of fluid replacement used to prevent and treat dehydration. It involves drinking water with modest amounts of sugar and salts.
So, the answer is C.
Chanda takes a piece of bread and chews for 5 times and Raju chew a piece of bread for 20-25 times. Who has better digestion of bread?
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Chanda only
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Raju only
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Both Chanda and Raju
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None of the above
Explanation
The action of chewing helps to break down the food present in the buccal cavity into finer fixture thus increasing the surface area for saliva to do its work surface are for the action of salivary enzymes so, it should be chewed 20-25 times.
Hence, Raju has better digestion of bread.
Therefore, option B is correct.
Which of these is a proper food?
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Pizza
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Burger
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Vegetables
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Chips
Explanation
Proper food is home-cooked and full of nutrients that our bodies need to remain healthy, thus option $$C$$ is correct
What is the liquid present in the stomach that helps in digestion?
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water
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digestive juices
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milk
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fruit juice
Explanation
The liquid in the stomach are digestive juices that help in the breakdown of food (digestion). Thus, option $$B$$ is correct
Choose whether true or false:
Jhumpa couldn't guess the food when her ears were closed.
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True
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False
Explanation
Jhumpa couldn't guess the food when her nose was closed, thus, the statement is false
How does our stomach digest the food?
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By churning
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By moving
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By being still
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By dissolving
Explanation
Our stomach digests the food by churning and dissolving which happens with the help of digestive juices. Thus, Options $$A&D$$ are correct.
Rice grows in which of the following places?
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Delhi
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Rajasthan
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Kalahandi
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Meghalaya
Explanation
Most rice grows in Kalahandi district thus, option $$C$$ is correct.
Which of the following were symptoms shown by Rashmi due to absence of nutritional food?
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Looked younger than her age
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Had pain in her legs
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Fat arms
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Pot belly
Explanation
Rashmi did not eat nutritional food which resulted in malnutrition and thus she had a pot belly. Pot belly is the deposits of body fat localized around the abdomen.
Hence, the correct answer is option D.
What will happen if mucus is not secreted by the gastric glands?
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Erosion of stomach wall
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Erosion of intestinal wall
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Indigestion of food
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Enlargement of stomach
Explanation
Gastric mucus is a gel-mucous barrier secreted by epithelial cells and glandular cells in the stomach wall. It acts as part of a barrier that protects the stomach wall from the acid and digestive enzymes within the stomach lumen.
So, if mucus is not secreted by the gastric glands, erosion of stomach wall occurs.
Option 'A' is correct.
The path taken by food material after ingestion is represented by
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Mouth ---> Oesophagus ---> Stomach ---> Pharynx
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Mouth ---> Pharynx ---> Oesophagus ---> Small Intestine ---> Stomach
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Mouth ---> Pharynx ---> Oesophagus ---> Stomach
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Oesophagus ---> Mouth ---> Pharynx ---> Stomach
The inner layer of the stomach releases
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Water
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Blood
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Minerals
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Digestive juices
Explanation
The stomach is made of 4 layers. They are serosa, muscularis, submucosa, mucosa. These layers of smooth muscle consist of the outer longitudinal, the middle circular, and the inner oblique muscles.
The innermost layer or lining (mucosa) contains the glands that release digestive juices which includes pepsin, chymotrypsin, hydrochloric acid etc. Hence, The inner layer of the stomach releases digestive juices.
So, the correct answer is 'digestive juices'.
How is shape of stomach?
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As V
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As J
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As O
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None of the above
Explanation
The stomach is a J-shaped, hollow organ located just inferior to the diaphragm in the left part of the abdominal cavity. It is located between the oesophagus and connects with the duodenum. It has two parts fundus and pyloric.
Therefore, the correct answer is option B.
Stomach secretes
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Dilute hydrochloric acid
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Dilute sulphuric acid
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Dilute citric acid
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Dilute nitric acid
Explanation
Stomach is a J shaped dilated portion of the alimentary tract. About 2 litres of gastric juices are secreted by specialised secretory glands in the stomach. It consists of: water, mineral salts, mucus, hydrochloric acid, intrinsic factor and inactive enzyme precursors.
The dilute hydrocholoric acid acidifies the food and stops action of salivary amylase, kills microbes and provides acid environment needed for the action of pepsins.
So, the answer is A.
Which among the following protects the lining of the stomach from hydrochloric acid?
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Pepsin
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Mucus
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Salivary amylase
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Bile
Explanation
The stomach wall has gastric glands that secrete gastric juice, which is a mixture of enzymes, HCl, and mucus. The stomach wall is always covered by a layer of thick mucus that serves two purposes. One is the lubrication of food masses in order to facilitate movement within the stomach. The other function is to form a protective
layer over the epithelium lining of the stomach wall. This mucus layer prevents the lining of the stomach wall from the acidic environment, created by HCl.
So, the correct answer is option B.
__________ can be used to treat acidity.
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Sodium bicarbonate
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Hydrochloric acid
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Amylase
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Pepsin
Explanation
When
there is an upsurge in the amount of acid produced by the stomach
, it can cause acidity. Acidity can also be caused by overeating, stress, unhealthy food habits, etc.
Now, sodium bicarbonate mixed with water acts as an antacid (base) that neutralizes the excess acid.
So, the correct answer is option A.
Raju got stomach ache. Which of the following could be a reason?
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He ate food at seven in the evening.
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He drank water after eating food.
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He did not chew the food properly.
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He did not wash his hands properly after eating food.
Explanation
Chewing breaks your food down from large particles into smaller particles that are more easily digested.
This also makes it easier for your intestines to absorb nutrients from the food particles as they pass through.
Chewing properly allows your stomach to work more efficiently and break down your food faster. Hence, Raju got the stomach ache as he did not chew the food properly.
Thus the correct answer is option C.
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