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Key Questions for class 7 Chapter 2 Nutrition in Animals covers the main topics students might encounter in exams. The chapter discusses various terms and facts. These questions, along with reference notes, are prepared by subject experts at IL. They offer a detailed understanding of the chapter. Many students have found these additional questions helpful. You can access the free PDF of these important questions for CBSE class 7 Chapter 2 on IL’s official website and download them onto any device.
Class 7 Science Nutrition in Animals Worksheets – PDF
Worksheet 1: Digestive System
The process of breaking down food into smaller pieces in the mouth is called ________________.
Answer: chewing or mastication
The food pipe that carries food from the mouth to the stomach is called the ________________.
Answer: esophagus
The digestive juice found in the stomach that helps in the breakdown of food is called ________________.
Answer: gastric juice
The small finger-like projections in the small intestine that absorb nutrients from the digested food are called ________________.
Answer: villi
The waste material that is left after the digestion of food is called ________________.
Answer: feces or excreta
Worksheet 2: Types of Teeth
The type of teeth that are sharp and pointed, used for tearing and cutting food are called ________________ teeth.
Answer: incisors
The teeth that are flat and used for grinding and crushing food are called ________________ teeth.
Answer: molars
The teeth that are cone-shaped and help in tearing and shredding food are called ________________ teeth.
Answer: canines or cuspids
The teeth that are found in between the incisors and molars, used for tearing and grinding food, are called ________________ teeth.
Answer: premolars or bicuspids
The total number of milk teeth in a human child is ________________.
Answer: 20
Worksheet 3: Food Digestion Process
Food digestion starts in the ________________.
Answer: mouth
The enzyme present in saliva that helps in the digestion of carbohydrates is called ________________.
Answer: amylase
The partially digested food that moves from the stomach to the small intestine is called ________________.
Answer: chyme
The organ where most of the digestion and absorption of nutrients takes place is the ________________.
Answer: small intestine
The waste material that is stored in the rectum before being eliminated from the body is called ________________.
Answer: feces
Worksheet 4: Digestive System Organs
The largest gland in the human body that produces bile is called the ________________.
Answer: liver
The organ that stores bile and releases it into the small intestine to help in the digestion of fats is called the ________________.
Answer: gallbladder
The organ that secretes digestive enzymes and bicarbonate into the small intestine is called the ________________.
Answer: pancreas
The part of the digestive system where water is absorbed from the undigested food and the remaining waste is compacted into feces is called the ________________.
Answer: large intestine or colon
The opening at the end of the digestive tract through which feces are eliminated from the body is called the ________________.
Answer: anus
Class 7 Science: Nutrition in Animals Worksheets
Worksheet 1: Digestive System
Question: Label the Parts of the Digestive System
a) Mouth
b) Esophagus
c) Stomach
d) Small Intestine
e) Large Intestine
Question: True or False
a) The stomach breaks down food into smaller pieces. (True/False)
b) The small intestine absorbs nutrients from the digested food. (True/False)
c) The large intestine absorbs water from undigested food. (True/False)
d) Digestion starts in the small intestine. (True/False)
Answers:
a) True
b) True
c) True
d) False
Question: Match the Columns
Match the digestive system organ with its function.
Mouth a) Absorbs nutrients
Stomach b) Absorbs water
Small Intestine c) Breaks down food mechanically
Large Intestine d) Breaks down food chemically
Answers:
c)
d)
a)
b)
Worksheet 2: Types of Teeth and their Functions
Question: Label the Types of Teeth
a) Incisors
b) Canines
c) Premolars
d) Molars
Question: Matching Exercise
Match the type of teeth with their function.
Incisors a) Grinding and crushing food
Canines b) Tearing food
Premolars c) Cutting and biting food
Molars d) Holding and tearing food
Answers:
c)
d)
a)
b)
Worksheet 3: Food and its Nutrients
Fill in the Blanks
a) ___________ is the main source of energy for our body.
b) ___________ helps in building and repairing tissues.
c) ___________ helps in keeping our skin healthy.
d) ___________ is needed for the proper functioning of our brain and nerves.
Answers:
a) Carbohydrates
b) Proteins
c) Vitamins
d) Fats
Question: True or False
a) Carbohydrates are found in foods like bread and rice. (True/False)
b) Proteins are important for the growth and repair of body tissues. (True/False)
c) Fats provide quick energy to the body. (True/False)
d) Vitamins and minerals are only found in non-vegetarian foods. (True/False)
Answers:
a) True
b) True
c) False
d) False
Class 7 Science Nutrition in Animals Worksheets FAQ’s
Q: What nutrients do animals need to survive?
A: Animals need nutrients like carbohydrates, proteins, fats, vitamins, and minerals to survive.
Q: How many stages of nutrition are found in animals?
A: There are two stages of nutrition in animals: ingestion, where they take in food, and digestion, where food is broken down.
Q: What type of nutrition do animals have?
A: Animals have heterotrophic nutrition, meaning they rely on consuming other organisms for their food.
Q: How does nutrition in animals take place?
A: Nutrition in animals happens through the process of ingestion, digestion, absorption of nutrients, and elimination of waste.
Q: How many types of nutrition are in animals?
A: There are two types of nutrition in animals: autotrophic nutrition, where they make their own food, and heterotrophic nutrition, where they consume other organisms for food.
Q: How many stages of nutrition are found in animals?
A: Animals have two stages of nutrition: ingestion, where they take in food, and digestion, where food is broken down.
