Worksheets With Solutions: Nutrition in Animals Class 6 Worksheet Science Chapter 2

Section A: Multiple Choice Questions

Q.1. Which of the following is not a mode of nutrition?
(a) Autotrophic nutrition
(b) Heterotrophic nutrition
(c) Saprophytic nutrition
(d) Anaerobic nutrition

Correct Answer is Option (d)

This is not a mode of nutrition. The correct modes of nutrition are autotrophic, heterotrophic, and saprophytic.

Q.2. What is the process by which food is taken into the body?
(a) Absorption
(b) Assimilation
(c) Ingestion
(d) Digestion

Correct Answer is Option (c)
This is the process by which food is taken into the body.

Q.3. Which of the following organisms use phagocytosis for nutrition?
(a) Amoeba
(b) Hydra
(c) Earthworm
(d) Cow

Correct Answer is Option (a)

Amoeba uses phagocytosis for nutrition, which is a process of engulfing solid food particles.

Q.4. Which teeth are responsible for cutting and biting food?
(a) Canines
(b) Molars
(c) Incisors
(d) Premolars

Correct Answer is Option (c)
Incisors are the teeth that are responsible for cutting and biting food.

Q.5. What is the role of saliva in the process of digestion?
(a) It helps in the absorption of food.
(b) It breaks down complex carbohydrates.
(c) It helps in the emulsification of fats.
(d) It kills harmful bacteria.

Correct Answer is Option (b) 
Saliva contains an enzyme called amylase, which breaks down complex carbohydrates into simpler sugars.

Section B: Short Questions

Q.1. What is the role of tongue in the process of digestion?

The tongue helps in mixing food with saliva and pushing it towards the pharynx, which helps in swallowing.

Q.2. What is the difference between rumination and regurgitation?

Rumination is the process by which ruminants bring back the food from their stomach to the mouth and chew it again, while regurgitation is the process of bringing back the food from the stomach to the esophagus without chewing it.

Q.3. Name two types of digestive enzymes and their functions.

Two types of digestive enzymes are protease, which breaks down proteins, and lipase, which breaks down fats.

Q.4. How is food digested in the stomach?

In the stomach, food mixes with gastric juice, which contains hydrochloric acid and enzymes that break down proteins. The muscular walls of the stomach then churn the food to mix it with the gastric juice and break it down further.

Q.5. What is the role of bile in the process of digestion?

Bile helps in the emulsification of fats, which means breaking down large fat droplets into smaller ones so that they can be easily acted upon by enzymes.

Section C: Fill in the Blanks

Q.1. The process of breaking down food into simpler substances is called ____________.

The process of breaking down food into simpler substances is called Digestion

Q.2. The finger-like projections in the small intestine are called ____________.

The finger-like projections in the small intestine are called Villi

Q.3. The type of teeth that are used for biting and cutting food are called ____________.

The type of teeth that are used for biting and cutting food are called Incisors

Q.4. ____________ is a type of nutrition in which organisms take in solid or liquid food.

Holozoic is a type of nutrition in which organisms take in solid or liquid food.

Q.5. Ruminants have a special stomach called ____________.

Ruminants have a special stomach called Rumen.

Section D: Match the Column

Explanation:

1. Amoeba - B. Absorptive mode of nutrition

Amoeba takes in food in a liquid form through its cell membrane by a process called endocytosis.

2. Carnivores - D. Incisors, canines and molars

Carnivores have sharp, pointed teeth for tearing flesh (canines) and molars for crushing and grinding food.

3. Herbivores - A. Six molars

Herbivores have large, flat molars for grinding and crushing tough plant material.

4. Humans - C. Long, coiled small intestine

The small intestine in humans is long and coiled to help in the absorption of nutrients from food.

5. Ruminants - E. Four-chambered stomach

Ruminants have a special stomach with four compartments (rumen, reticulum, omasum, and abomasum) that helps them digest tough plant material.

Section E: True or False

Q.1. The process of digestion begins in the small intestine. ____________

False
The process of digestion begins in the mouth with the help of saliva.

Q.2. Humans are herbivores. ____________

False
Humans are omnivores, which means they eat both plants and animals.

Q.3. Ruminants have a special stomach with four compartments. ____________

True
Ruminants have a special stomach with four compartments (rumen, reticulum, omasum, and abomasum) that helps them digest tough plant material.

Q.4. Amoeba takes in food through small pores on its surface. ____________

True
Amoeba takes in food through small pores on its surface called pseudopodia.

Q.5. The tongue helps in chewing and grinding food. ____________

True
The tongue helps in chewing and grinding food and also helps in forming a bolus (a ball of food) that can be easily swallowed.