CBSE 7th Standard Science Nutrition in Animals Sample Question Papers Study Material - QB365 Set A | QB365

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CBSE 7th Standard Science Nutrition in Animals Sample Question Papers Study Material - QB365 Set A

Published on: 31/10/2025

Question Set A

CBSE 7th Standard Science Nutrition in Animals Sample Question Papers Study Material - QB365

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Std: 7th Standard CBSE - Science

chapter: Nutrition in Animals - Sample Question Papers

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Questions:

Multiple Choice Question

5 x 1 = 5

The swallowed food moves downwards 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

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

(a)

Canines and incisors

(b)

Molars and premolars

(c)

Incisors and molars

(d)

Premolars and canines

Hydrochloric acid is secreted by

(a)

linings of small intestine

(b)

inner lining of stomach

(c)

pancreas

(d)

lining of liver

Water from the undigested food is absorbed mainly in the

(a)

stomach

(b)

foodpipe

(c)

small intestine

(d)

large intestine

Fat is completely digested in the

(a)

stomach

(b)

mouth

(c)

small intestine

(d)

large intestine

Generic 3

6 x 3 = 18

Label the given figure of the digestive system.

Write one similarity and one difference between nutrition in Amoeba and human beings.

Which part of the digestive canal is involved in
(a) absorption of food
(b) chewing of food
(c) killing of bacteria
(d) complete digestion of food
(e) formation of faeces

Why do we get instant energy from glucose?

10.

Name the type of carbohydrate that can be digested by ruminants but not by humans. Give the reason also.

11.

Where is the bile produced? Which component of the food does it help to digest?

Generic 2

6 x 2 = 12

12.

Suggest the organ of digestive system where the digestive juices from liver and pancreas is poured.

13.

The long structure of small intestine is accommodated in small space within our body. Comment.

14.

Explain the role of mucus secreted by stomach.

15.

Name the secretions of stomach which digest food.

16.

We should not eat hurriedly. Give reason.

17.

You were blindfolded and asked to identify the drinks provided in two different glasses. You could identify drink A as lime juice and B as bitter gourd juice. How could you do it inspite of being blindfolded?

Generic 5

3 x 5 = 15

18.

Jaya returned from school and found that grandmother was scolding her maid, Rani as she did not come yesterday. The maid told that his son was passing watery stools frequently that's why she didn't come. Jaya's mother who was listening the discussion came to them and told Rani not to come for coming 3-4 days. She also suggested her to give his son a solution of sugar and salt in clean water, many times a day for fast recovery. Jaya was surprised. She rushed to her mother and asked the scientific reason for it. Her mother smiled and explained her the importance of this solution.
(a) Name the term used to describe the condition in which a person passes out watery stools.
(b) Name the solution of sugar and salt in water. Why is it given to a person suffering from diarrhoea?
(c) What are the values shown by Jaya?

19.

Label the following parts of above figure and name them.
(a) The largest gland in our body.
(b) The organ where protein digestion starts.
(c) The organ that releases digestive juice into the small intestine.
(d) The organ where bile juice gets stored.

20.

Label the given figure as directed below in A to D and give the name of each type of teeth.
(a) The cutting and biting teeth as A
(b) The piercing and tearing teeth as B
(c) The grinding and chewing teeth as C
(d) The grinding teeth present only in adult as D.

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Answers Key:

Multiple Choice Question

5 x 1 = 5

(d)
the contraction of muscles in the wall of food pipe

(b)
Molars and premolars

(b)
inner lining of stomach

Large intestine absorbs the water from undigested food.

Small intestine is the site for complete digestion of fats by the action of bile juice

Generic 3

6 x 3 = 18

The digestive system is composed of following parts:

Both Amoeba and humans require energy for the growth and maintenance of their bodies. This energy is derived from the food they eat. The food is in a complex form and is therefore broken down into simple forms by the process of digestion. Both these organisms are heterotrophs, i.e. they derive their food from other plants or animals.
Difference between nutrition in Amoeba and human beings are

Digestion in human	Digestion in Amoeba
Humans have mouth and complex digestive system.	Mouth and digestive system are absent in Amoeba.
Digestive juices are secreted in the buccal cavity, stomach and small intestine.	Digestive juices are secreted in the food vacuole.
Digestion of carbohydrates, proteins and fats starts in separate regions.	All the food components are digested in the food vacuole.

Parts of digestive canal that are involved in following processes are
(a) small intestine
(b) buccal cavity
(c) stomach
(d) small intestine
(e) large intestine

Glucose is a simple sugar or carbohydrate which is broken down in the presence of oxygen into CO₂ and H₂O and releases instant energy. Glucose is easily absorbed by the blood, hence provides instant energy to the body.

10.

Cellulose is the carbohydrate that can be digested by ruminants but not by humans because ruminants have a large sac-like structure called rumen which is located between the small intestine and large intestine. Certain bacteria are present in rumen which helps in digesting cellulose.

11.

Bile juice is produced by the liver and stored in gall bladder. It helps in digestion of fats present in food.

Generic 2

6 x 2 = 12

12.

The digestive juices from liver and pancreas is poured into small intestine which helps in complete digestion and absorption of food.

13.

The small intestine is about 7.5 metre long It is accommodated in a coiled form inside our body.

14.

The function of mucus is to protect the lining of stomach from the action of hydrochloric acid secreted by stomach lining.

15.

The inner lining of stomach secretes mucous hydrochloric acid and digestive juices.

16.

We should not eat hurriedly because if we ingest food in hurry or we talk or laugh while eating we experience hiccups, coughing or choking sensation.

17.

Inspite of being blindfolded, one could identify two different drinks with the help of taste buds present in the tongue.

Generic 5

3 x 5 = 15

18.

(a) Diarrhoea.
(b) Oral Rehydration Solution (ORS). It is given to a person suffering from diarrhoea to prevent the dehydration.
(c) She is sincere, curious and has interest in science.

19.