Class 7 Science Chapter 2 MCQ

Class 7 Science Chapter 2 MCQ (Multiple Choice Questions) of Nutrition in Animals. Students can use these questions for the preparation for class tests or examination for new academic session 2021-22.

All the questions are taken from Class 7 Science NCERT Book Chapter 2. If you have done the MCQ test once, you can see the answers and explanation of each answer.

Class 7 Science Chapter 2 MCQ for 2021-22

Class:7
Subject:Science
Contents:Multiple Choice Questions – MCQ Tests

Class 7 Science Chapter 2 MCQ for Exams

Class 7 Science Chapter 2 MCQ are given below with answers and explanation. Attempt at least 5 tests to test your exam preparation based on Class 7 Science Chapter 2. There are 24 sets of MCQ tests for practice containing more than 120 questions. These test will provide a complete revision for second chapter of grade 7 science.

Q1

Cellulose rich food substances are good sources of roughage in human being because

[A]. Human beings do not have cellulose digesting enzymes.
[B]. Cellulose gets absorbed in the human blood and converts into fibres.
[C]. The cellulose digesting bacteria convert cellulose into fibres.
[D]. Cellulose breaks down into smaller components which are egested as roughage.
Q2

Which is the largest gland in the human body?

[A]. Pancreas
[B]. Large intestine
[C]. Stomach
[D]. Liver
Q3

In which of the statements is or are incorrect, about eating habits of animals?

[A]. Animals that obtain their food by killing other animals, called scavengers.
[B]. Organisms that obtain their food from other animals either by living inside or outside their body, called parasite.
[C]. Animals that consume plants as well as other animals as their food, called omnivorous.
[D]. Animals that obtain their food only from plants, called herbivorous.
Q4

Read the sentence which is related to digestive system and choose the word for it. “Transport of digested and soluble food from the intestine to blood vessels”.

[A]. Large intestine
[B]. Absorption
[C]. Assimilation
[D]. Digestion
Q5

There are given some parts of digestive system, choose the odd one out

[A]. Stomach
[B]. Liver
[C]. Pancreas
[D]. Salivary gland




Q6

In which of the following statement is or are incorrect?

[A]. The ruminants bring back swallowed grass into their mouth and chew it for some time.
[B]. The gallbladder temporarily stores bile.
[C]. The tongue helps in mixing food with saliva.
[D]. Digestion of starch starts in the stomach.
Q7

Paheli wants to know the name of the teeth, which helps to “piercing and tearing” the food?

[A]. Molar
[B]. Premolar
[C]. Incisors
[D]. Canines
Q8

The pancreatic juice which is secreted by pancreas, it acts on

[A]. Carbohydrates
[B]. Proteins
[C]. Fats
[D]. All the above
Q9

Paheli wants to know the name of the insect which has primitive arrangement of mouth parts for biting and chewing

[A]. Housefly
[B]. Cockroach
[C]. Mosquito
[D]. Leech
Q10

The acid present in the stomach

[A]. Kills the harmful bacteria that may enter along with the food
[B]. Protects the stomach lining from harmful substances
[C]. Digest starch into simpler sugars
[D]. Make the medium alkaline



Q11

The finger-like outgrowth of “Amoeba” helps to ingest food. However, the finger-like outgrowths of human intestine helps to

[A]. Digest the fatty food substances.
[B]. Make the food soluble.
[C]. Absorb the digested food.
[D]. Absorb the undigested food.
Q12

In which of the statements is or are incorrect about “Amoeba”?

[A]. It pushes out finger like pseudopodia which engulf the prey.
[B]. Lysosome secretes digestive enzymes in the food vacuole.
[C]. Prey is digested and the undigested material is expelled out by the vacuole.
[D]. None of the above.
Q13

What do you mean by “salivary digestion”?

[A]. When fats breakdown into fatty acids and glycerol, called salivary digestion.
[B]. When proteins breakdown into amino acids, called salivary digestion.
[C]. When cud returns to the mouth in small lumps and the animal chews it, called salivary digestion.
[D]. None of the above.
Q14

The swallowed food moves down-words in the alimentary canal because of

[A]. Force provided by the muscular tongue.
[B]. The flow of water taken with the food.
[C]. Gravitational pull.
[D]. The contraction of muscles in the wall of food-pipe.
Q15

Paheli wants to know the name of the organ that releases digestive juice into the small intestine?

[A]. Liver
[B]. Stomach
[C]. Pancreas
[D]. Gall bladder



Q16

They are given some parts of the digestive system, choose the odd one

[A]. Oesophagus
[B]. Small intestine
[C]. Large intestine
[D]. Rectum
Q17

Which of the following pair of teeth differ in structure but are similar in functions?

[A]. Canines and incisors
[B]. Molars and premolars
[C]. Incisors and molars
[D]. Premolars and canines
Q18

Boojho asked a question to Paheli that how many types of taste buds found in our tongue?

[A]. Two
[B]. Four
[C]. Six
[D]. Eight
Q19

Boojho wants to know the name of insects which has piercing and sucking mouth parts that pierce food items to enable sucking of internal fluids?

[A]. Mosquito
[B]. Housefly
[C]. Cockroach
[D]. Ant
Q20

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

[A]. Boiled and mashed potato glucose, glucose solution.
[B]. Boiled and mashed potato, a slice of bread.
[C]. Glucose solution, a slice of bread.
[D]. A slice of bread, mustard oil.




Q21

Which of the following statements is or are incorrect, about “human digestive system”?

[A]. Food is pushed into the stomach by the peristaltic movement.
[B]. In humans, the small intestine is about 6 metre and large intestine is about 1.5 metre long.
[C]. The villi increase the surface area for absorption of the digested food.
[D]. None of the above.
Q22

Read the statement and choose a word for it: “Organisms which take food hurriedly and store it, in a part of the stomach. This digested food is returned to the buccal cavity for the complete process of digestion”.

[A]. Cattles
[B]. Omnivores
[C]. Beetles
[D]. Carrion feeders
Q23

There are given some parts of digestive system, choose the odd one out.

[A]. Liver
[B]. Salivary gland
[C]. Starch
[D]. Gallbladder
Q24

Read the statement which is related to digestive system and choose a word for it: “Transportation of absorbed food of different parts of body and their utilization”.

[A]. Assimilation
[B]. Absorption
[C]. Respiration
[D]. Digestion
Q25

In which of the following statements is or are incorrect?

[A]. The saliva breaks down the food into sugars.
[B]. The digestive juices (present in the stomach) breaks down the fat into simpler substances.
[C]. The bile juice plays an important role in the digestion of proteins.
[D]. All the above.



Class 7 Science Chapter 2 Extra Questions

What are the different parts of Human Digestive System?

Human digestive system consists of mouth, oesophagus, stomach, small intestine, large intestine, rectum and anus.

How many type of teeth are there in Human being?

There are four types of teeth found in human being. These are incisors, canines, premolars and molars.

Where is the digested food absorbed in Human being?

The digested food is absorbed at illum of small intestine by finger like structures called villi.

What is absorbed in large intestine?

In large intestine, most of the water is reabsorbed.

True or False Questions

1. Parasites are Autotrophs.
2. Amoeba ingest food by Pseudo podia.
3. Milk teeth are replaced by permanent teeth in human.
4. Nutrition is not necessary for all organisms.
5. Large intestine is the longest part of digestive system of human.
6. Digestion of food starts from mouth.
7. A butterfly uses its feeding tube to suck nector from flowers.
8. Ruminants have four chambers of stomach.

Answers of True or False Questions

1. False
2. True
3. True
4. False
5. False
6. True
7. True
8. True