NCERT Exemplar Solution for Class 7 Science Chapter-2 Nutrition in Animals
Understanding how living beings obtain and use food is an important part of science learning. Chapter 2, Nutrition in Animals, introduces students to the fascinating process of digestion and the different ways animals consume food. This chapter explains how food travels through the digestive system, how nutrients are absorbed, and how animals like cows and buffaloes digest food differently from humans. The concepts are simple yet informative, helping students connect science with everyday life. The NCERT Exemplar Solution for Class 7 helps learners practise application-based questions and understand scientific concepts with clarity. Students preparing through the NCERT Exemplar Solution for class 7 gain confidence in answering logical and analytical questions. These explanations also support school preparation and strengthen concepts included in NCERT solutions for class 7 science.
Find the Exercises PDF of NCERT Exemplar Solution for Class 7 Science Chapter-2 Nutrition in Animals
Importance of Nutrition in Animals
Nutrition is the process through which living organisms obtain food and use it for growth, repair, and energy. Animals cannot prepare their own food like green plants, so they depend on other organisms for nourishment. This chapter explains the five important stages of nutrition: ingestion, digestion, absorption, assimilation, and egestion.
The digestive system in humans starts from the mouth, where food is chewed and mixed with saliva. Saliva contains digestive juices that begin breaking down starch into sugar. Food then passes through the oesophagus into the stomach, where it gets mixed with digestive acids and enzymes. In the small intestine, nutrients from food are absorbed into the bloodstream. The large intestine absorbs water, and the remaining waste is removed from the body. The chapter also explains why balanced nutrition is necessary for healthy growth and energy. Students learn the importance of chewing food properly and maintaining good eating habits. The NCERT Exemplar Solution for Class 7 Science provides clear answers and examples that simplify these biological processes for young learners.
Digestive System and Its Functions
One of the major topics in this chapter is the human digestive system. Students learn about the structure and function of different digestive organs. The mouth, food pipe, stomach, liver, pancreas, small intestine, and large intestine work together to digest food completely.
The stomach produces hydrochloric acid and digestive juices that help break down proteins. The liver produces bile juice, which helps digest fats. The pancreas releases enzymes into the small intestine, making digestion easier. The villi present in the small intestine absorb nutrients and send them into the bloodstream. The chapter also introduces the concept of absorption and assimilation. Absorption refers to nutrients entering the blood, while assimilation means using those nutrients for energy and growth. This practical explanation improves conceptual understanding and supports classroom learning. Students often find diagrams and organ functions difficult to remember. Practising with the NCERT Exemplar Solution helps in revising important scientific terms and understanding the sequence of digestion step by step. These solutions also help students prepare for exams by improving accuracy in objective and short-answer questions.
Feeding Habits of Different Animals
Animals have different methods of obtaining and digesting food. Some animals chew food thoroughly, while others swallow it directly. Herbivores such as cows, buffaloes, and goats are called ruminants because they chew cud. They quickly swallow grass and later bring it back into the mouth for chewing again. Their stomach has four chambers that help digest cellulose-rich food. Carnivores like lions and tigers have sharp teeth for tearing flesh, while omnivores eat both plants and animals. The chapter also explains how amoeba, a microscopic organism, consumes food using pseudopodia. It surrounds food particles and digests them inside a food vacuole.
These examples help students understand diversity in the animal kingdom and how organisms adapt according to their food habits. The NCERT Exemplar Solution for Class 7 includes multiple-choice questions, fill-in-the-blanks, and reasoning-based exercises that improve scientific thinking. By solving exemplar questions regularly, students can understand difficult concepts more effectively and develop confidence in science subjects. The explanations are designed to strengthen concepts in a simple and student-friendly manner.
Benefits of Practising NCERT Exemplar Questions
NCERT exemplar questions are known for testing conceptual understanding rather than simple memorisation. They include competency-based questions that encourage logical thinking and application skills. Practising these exercises improves problem-solving ability and helps students answer tricky questions confidently. This chapter is especially important because it forms the foundation for higher-level biology topics related to digestion and nutrition. Students who understand these concepts early find advanced science chapters easier in higher classes.
The NCERT Exemplar Solution provides step-by-step explanations that make revision quick and effective. It also helps students identify common mistakes and improve answer-writing skills. Regular practice enhances understanding and supports better academic performance.Importance of Nutrition in Animals
Nutrition is the process through which living organisms obtain food and use it for growth, repair, and energy. Animals cannot prepare their own food like green plants, so they depend on other organisms for nourishment. This chapter explains the five important stages of nutrition: ingestion, digestion, absorption, assimilation, and egestion.
The digestive system in humans starts from the mouth, where food is chewed and mixed with saliva. Saliva contains digestive juices that begin breaking down starch into sugar. Food then passes through the oesophagus into the stomach, where it gets mixed with digestive acids and enzymes. In the small intestine, nutrients from food are absorbed into the bloodstream. The large intestine absorbs water, and the remaining waste is removed from the body. The chapter also explains why balanced nutrition is necessary for healthy growth and energy. Students learn the importance of chewing food properly and maintaining good eating habits. The NCERT Exemplar Solution for Class 7 Science provides clear answers and examples that simplify these biological processes for young learners.
Digestive System and Its Functions
One of the major topics in this chapter is the human digestive system. Students learn about the structure and function of different digestive organs. The mouth, food pipe, stomach, liver, pancreas, small intestine, and large intestine work together to digest food completely.
The stomach produces hydrochloric acid and digestive juices that help break down proteins. The liver produces bile juice, which helps digest fats. The pancreas releases enzymes into the small intestine, making digestion easier. The villi present in the small intestine absorb nutrients and send them into the bloodstream. The chapter also introduces the concept of absorption and assimilation. Absorption refers to nutrients entering the blood, while assimilation means using those nutrients for energy and growth. This practical explanation improves conceptual understanding and supports classroom learning. Students often find diagrams and organ functions difficult to remember. Practising with the NCERT Exemplar Solution helps in revising important scientific terms and understanding the sequence of digestion step by step. These solutions also help students prepare for exams by improving accuracy in objective and short-answer questions.
Feeding Habits of Different Animals
Animals have different methods of obtaining and digesting food. Some animals chew food thoroughly, while others swallow it directly. Herbivores such as cows, buffaloes, and goats are called ruminants because they chew cud. They quickly swallow grass and later bring it back into the mouth for chewing again. Their stomach has four chambers that help digest cellulose-rich food. Carnivores like lions and tigers have sharp teeth for tearing flesh, while omnivores eat both plants and animals. The chapter also explains how amoeba, a microscopic organism, consumes food using pseudopodia. It surrounds food particles and digests them inside a food vacuole.
These examples help students understand diversity in the animal kingdom and how organisms adapt according to their food habits. The NCERT Exemplar Solution for Class 7 includes multiple-choice questions, fill-in-the-blanks, and reasoning-based exercises that improve scientific thinking. By solving exemplar questions regularly, students can understand difficult concepts more effectively and develop confidence in science subjects. The explanations are designed to strengthen concepts in a simple and student-friendly manner.
Benefits of Practising NCERT Exemplar Questions
NCERT exemplar questions are known for testing conceptual understanding rather than simple memorisation. They include competency-based questions that encourage logical thinking and application skills. Practising these exercises improves problem-solving ability and helps students answer tricky questions confidently. This chapter is especially important because it forms the foundation for higher-level biology topics related to digestion and nutrition. Students who understand these concepts early find advanced science chapters easier in higher classes.
The NCERT Exemplar Solution provides step-by-step explanations that make revision quick and effective. It also helps students identify common mistakes and improve answer-writing skills. Regular practice enhances understanding and supports better academic performance.