Vidaara.orgClass 7 · Mathematics
CodeVID-M7-WS
Nutrition in Animals — Practice Worksheet
Name: ____________________
Roll No.: __________
Date: ____________
General Instructions
- All questions are compulsory.
- Choose the correct option (A, B, C or D) for each question.
- The answer key is at the end — try the paper first!
Section A — Multiple Choice (1 mark each)
25 × 1 = 25 marks
1.
The taking in of food into the body is called:
- A.Digestion
- B.Ingestion
- C.Absorption
- D.Egestion
2.
The breaking down of complex food into simple, soluble substances is called:
- A.Ingestion
- B.Digestion
- C.Assimilation
- D.Egestion
3.
The passing of digested food into the blood is called:
- A.Absorption
- B.Egestion
- C.Ingestion
- D.Assimilation
4.
The removal of undigested food as waste is called:
- A.Absorption
- B.Assimilation
- C.Egestion
- D.Digestion
5.
The chemicals in digestive juices that help break down food are called:
- A.Enzymes
- B.Nutrients
- C.Minerals
- D.Hormones
6.
The long tube through which food passes from mouth to anus is the:
- A.Oesophagus
- B.Alimentary canal
- C.Stomach
- D.Trachea
7.
Saliva in the mouth begins the digestion of:
- A.Proteins
- B.Fats
- C.Starch
- D.Minerals
8.
The wave-like movement that pushes food along the food pipe is called:
- A.Digestion
- B.Peristalsis
- C.Absorption
- D.Churning
9.
The acid present in gastric juice in the stomach is:
- A.Citric acid
- B.Hydrochloric acid
- C.Acetic acid
- D.Sulphuric acid
10.
The digestion of proteins begins in the:
- A.Mouth
- B.Oesophagus
- C.Stomach
- D.Large intestine
11.
Most of the digestion and absorption of food takes place in the:
- A.Stomach
- B.Small intestine
- C.Large intestine
- D.Oesophagus
12.
Bile, which helps digest fats, is produced by the:
- A.Pancreas
- B.Liver
- C.Stomach
- D.Kidney
13.
The tiny finger-like projections that absorb food in the small intestine are:
- A.Stomata
- B.Villi
- C.Nodules
- D.Glands
14.
Carbohydrates are finally broken down during digestion into:
- A.Amino acids
- B.Glucose
- C.Fatty acids
- D.Proteins
15.
Pancreatic juice, which digests carbohydrates, proteins, and fats, is made by the:
- A.Liver
- B.Pancreas
- C.Gall bladder
- D.Salivary glands
16.
The main function of the large intestine is to absorb:
- A.Glucose
- B.Water and some salts
- C.Proteins
- D.Fats
17.
The removal of undigested waste (faeces) from the body is called:
- A.Absorption
- B.Digestion
- C.Egestion
- D.Ingestion
18.
The teeth used for cutting and biting food are the:
- A.Molars
- B.Canines
- C.Incisors
- D.Premolars
19.
Tooth decay is caused by acids produced by mouth bacteria acting on:
- A.Water
- B.Sugary food particles
- C.Fibre
- D.Saliva
20.
Which habit best helps prevent tooth decay?
- A.Eating more sweets
- B.Brushing twice a day
- C.Never visiting a dentist
- D.Avoiding water
21.
The large stomach chamber where ruminants store and partly digest grass is the:
- A.Rumen
- B.Rectum
- C.Gall bladder
- D.Pancreas
22.
The chewing of the cud by animals like cows is called:
- A.Ingestion
- B.Rumination
- C.Egestion
- D.Absorption
23.
Bacteria in the rumen help digest which substance in grass?
- A.Protein
- B.Cellulose
- C.Fat
- D.Starch
24.
Amoeba captures its food using finger-like extensions called:
- A.Villi
- B.Pseudopodia
- C.Cilia
- D.Tentacles
25.
Inside an Amoeba, food is digested within a structure called the:
- A.Food vacuole
- B.Rumen
- C.Stomach
- D.Nucleus
Answer Key
Section A — Multiple Choice (1 mark each)
- (B) Ingestion
- (B) Digestion
- (A) Absorption
- (C) Egestion
- (A) Enzymes
- (B) Alimentary canal
- (C) Starch
- (B) Peristalsis
- (B) Hydrochloric acid
- (C) Stomach
- (B) Small intestine
- (B) Liver
- (B) Villi
- (B) Glucose
- (B) Pancreas
- (B) Water and some salts
- (C) Egestion
- (C) Incisors
- (B) Sugary food particles
- (B) Brushing twice a day
- (A) Rumen
- (B) Rumination
- (B) Cellulose
- (B) Pseudopodia
- (A) Food vacuole
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