Nutrition in Animals Class 7 MCQs Questions with Answers
I. Choose the correct option.
Question 1.
The false feet of Amoeba are used for
(a) movement only
(b) capturing food only
(c) capturing food and movement
(d) exchange of gases only
Answer
Answer: (c) capturing food and movement
Question 2.
The component of food which is complex is
(a) protein
(b) carbohydrate
(c) fat
(d) all of these
Answer
Answer: (d) all of these
Question 3.
The breakdown of complex components of food into simpler substances is called
(a) ingestion
(b) egestion
(c) assimilation
(d) digestion
Answer
Answer: (d) digestion
Question 4.
The way of taking food by bees is
(a) swallowing
(b) sucking
(c) filtering
(d) none of these
Answer
Answer: (b) sucking
Question 5.
Which of the following animals swallow its prey?
(a) Human beings
(b) Snakes
(c) Humming birds
(d) Ant
Answer
Answer: (b) Snakes
Question 6.
Enzymes present in saliva converts
(a) starch into simple sugars
(b) proteins into amino acids
(c) complex sugars into simple sugars
(d) fats into fatty acids and glycerol
Answer
Answer: (a) starch into simple sugars
Question 7.
From where do we take in food?
(a) Anus
(b) Mouth
(c) Stomach
(d) Oesophagus.
Answer
Answer: (b) Mouth
Question 8.
The digestive tract and the associated glands together constitute the
(a) digestive system
(b) oesophagus
(c) alimentary canal
(d) nutrition system
Answer
Answer: (a) digestive system
Question 9.
The teeth of first set fall off at the age between
(a) 10 – 20
(b) 6 – 8
(c) 9 – 11
(d) 0 – 2
Answer
Answer: (b) 6 – 8
Question 10.
The teeth of the first set that grew during infancy are called
(a) permanent teeth
(b) milk teeth
(c) starting teeth
(d) all of these
Answer
Answer: (b) milk teeth
Question 11.
The teeth of the second set that replace the milk teeth are known as
(a) permanent teeth
(b) temporary teeth
(c) milk teeth
(d) hard teeth
Answer
Answer: (a) permanent teeth
Question 12.
The process of taking food in the body is known as
(a) egestion
(b) ingestion
(c) digestion
(d) assimilation
Answer
Answer: (b) ingestion
Question 13.
How many types of teeth are there?
(a) 1
(b) 2
(c) 3
(d) 4
Answer
Answer: (d) 4
Question 14.
The glands of mouth which secrete saliva are
(a) salivary glands
(b) pancreas
(c) lungs
(d) liver
Answer
Answer: (a) salivary glands
Question 15.
Starch is broken down into sugars by the action of
(a) saliva
(b) bile juice
(c) hydrochloric acid
(d) all of these
Answer
Answer: (a) saliva
Question 16.
Which gland secretes bile juice?
(a) Liver
(b) Pancreas
(c) Bladder
(d) All of these
Answer
Answer: (a) Liver
Question 17.
The bile plays an important role in the digestion of
(a) carbohydrates
(b) fats
(c) sugar
(d) starch
Answer
Answer: (b) fats
Question 18.
The removal of faeces through the anus from time to time is called
(a) rumination
(b) micturition
(c) ingestion
(d) egestion
Answer
Answer: (d) egestion
Question 19.
ellulose is a type of
(a) fats
(b) carbon dioxide
(c) carbohydrate
(d) all of these
Answer
Answer: (c) carbohydrate
Question 20.
The finger-like outgrowths of human intestine helps to
(a) make the food soluble
(b) absorb the digested food
(c) absorb the undigested food
(d) digest the fatty food substances
Answer
Answer: (b) absorb the digested food
II. Fill in the Blanks
Question 1.
The ……………. present in the stomach kills the harmful bacteria that may enter along with the food.
Answer
Answer: acid
Question 2.
Animals get their food from ……………. either directly or indirectly by eating animals that eat plants.
Answer
Answer: plants
Question 3.
All organisms require …………….. for growth, repair and functioning of the body.
Answer
Answer: food
Question 4.
We get hiccups when food particles enter the ……………..
Answer
Answer: windpipe
Question 5.
The …………….. of complex components of food into simpler substances is called digestion.
Answer
Answer: break down
Question 6.
Enzyme present in saliva is ……………..
Answer
Answer: salivary amylase
Question 7.
The continuous canal which begins at the buccal cavity and ends at the anus is called …………….. or ……………..
Answer
Question 8.
The gradual damage of teeth due to acid is known as ……………..
Answer
Answer: tooth decay
Question 9.
The process of taking the food into the body is called ……………..
Answer
Answer: ingestion
Question 10.
The swallowed food passes from buccal cavity to stomach through ……………..
Answer
Answer: oesophagus
Question 11.
…………….. is the widest part of the alimentary canal.
Answer
Answer: Stomach
Question 12.
The lining of the stomach is protected by the ……………..
Answer
Answer: mucous
Question 13.
The inner lining of the stomach secretes …………….. , …………….. and ……………..
Answer
Answer: mucous, hydrochloric acid, digestive juices
Question 14.
The digestive juices from stomach break down the …………….. into simpler substances.
Answer
Answer: proteins
Question 15.
The length of the small intestine is about …………….. metres.
Answer
Answer: 7.5
Question 16.
The largest gland of the human body is ……………..
Answer
Answer: liver
Question 17.
Liver secretes …………….. juice.
Answer
Answer: bile
Question 18.
The bile juice is stored in a sac called ……………..
Answer
Answer: gall bladder
Question 19.
Digestion of fats start in ……………..
Answer
Answer: small intestine
Question 20.
…………….. helps in tearing the food.
Answer
Answer: Canine
III. State whether the given statements are true or false.
Question 1.
Diarrhoea is a condition in which one passes watery stool frequently.
Answer
Answer: True
Question 2.
Oesophagus helps in the digestion of food.
Answer
Answer: False
Question 3.
Ingestion is the breakdown of complex components of food into simple substances.
Answer
Answer: False
Question 4.
Sugary products are the major cause of tooth decay.
Answer
Answer: True
Question 5.
Food is taken in through the mouth.
Answer
Answer: True
Question 6.
Alimentary canal begins at the anus and ends at the buccal cavity.
Answer
Answer: False
Question 7.
Dental floss is a special strong thread used to clean teeth.
Answer
Answer: True
Question 8.
Permanent teeth are replaced by milk teeth.
Answer
Answer: False
Question 9.
We chew food with the stomach.
Answer
Answer: False
Question 10.
Permanent teeth are 32 in number.
Answer
Answer: True
Question 11.
Milk teeth are 20 in number.
Answer
Answer: True
Question 12.
The saliva breaks down the starch into amino acids.
Answer
Answer: False
Question 13.
ORS is given during diarrhoea.
Answer
Answer: True
Question 14.
Oesophagus is also known as abdomen.
Answer
Answer: False
Question 15.
The bile juice is stored in a sac called gall bladder.
Answer
Answer: True
Question 16.
Ruminants have five-chambered stomach.
Answer
Answer: False
Question 17.
The inner walls of large intestine have thousands of finger-like projections called villi.
Answer
Answer: False
Question 18.
Grass-eating animals are called herbivores.
Answer
Answer: True
Question 19.
Amoeba is a multicellular organism.
Answer
Answer: False
Question 20.
Amoeba feeds on frog larvae.
Answer
Answer: False
IV. Match the Following
| Column I | Column II |
| 1. Salivary amylase | (a) Digest protein |
| 2. Gastric juice | (b) Cream-coloured gland |
| 3. Pancreatic juice | (c) Stores many bacteria |
| 4. Bile | (d) Mode of feeding |
| 5. Chewing cud | (e) Kills germ |
| 6. Caecum | (f) Tongue |
| 7. Foodpipe | (g) Emulsifies fat |
| 8. Pancreas | (h) Breaks carbohydrate |
| 9. Taste buds | (i) Oesophagus |
| 10. Siphoning | (j) Ruminants |
Answer
Answer:
| Column I | Column II |
| 1. Salivary amylase | (h) Breaks carbohydrate |
| 2. Gastric juice | (e) Kills germ |
| 3. Pancreatic juice | (a) Digest protein |
| 4. Bile | (g) Emulsifies fat |
| 5. Chewing cud | (j) Ruminants |
| 6. Caecum | (c) Stores many bacteria |
| 7. Foodpipe | (i) Oesophagus |
| 8. Pancreas | (b) Cream-coloured gland |
| 9. Taste buds | (f) Tongue |
| 10. Siphoning | (d) Mode of feeding |
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