NCERT Exemplar Solution for Class 7 Science Chapter-11 Transportation in Animals and Plants
Transportation is one of the most important life processes in living organisms because every cell in the body requires food, oxygen, water, and nutrients to survive. In plants and animals, different systems work continuously to transport essential substances from one part to another. This chapter explains how blood carries nutrients and oxygen in animals, how the heart pumps blood throughout the body, and how plants transport water and food through specialized tissues. Students studying this chapter can improve their conceptual understanding through the NCERT Exemplar Solution for Class 7 Science which provides application-based questions and detailed explanations. The NCERT Exemplar Solution for class 7 helps learners strengthen scientific thinking and understand real-life biological processes more effectively. These concepts are also useful for students searching for reliable NCERT solutions for class 7 to prepare for exams and school assessments confidently.
Find the Exercises PDF of NCERT Exemplar Solution for Class 7 Science Chapter-11 Transportation in Animals and Plants
Transportation in Animals
Animals require a proper transportation system because nutrients obtained from food and oxygen taken during breathing must reach every cell of the body. The circulatory system performs this important task. Blood acts as the main transporting fluid and carries oxygen, digested food, hormones, and waste substances throughout the body.
The heart is the central organ of the circulatory system. It works like a pump that pushes blood into blood vessels. The rhythmic beating of the heart maintains continuous blood circulation. Blood vessels are mainly of three types: arteries, veins, and capillaries. Arteries carry oxygen-rich blood away from the heart, veins bring blood back to the heart, and capillaries help in the exchange of substances between blood and body cells. Blood consists of plasma, red blood cells, white blood cells, and platelets. Red blood cells contain haemoglobin, which helps transport oxygen. White blood cells protect the body from diseases, while platelets help in clotting blood during injuries. This clotting prevents excessive blood loss and protects the body.
Another important part of transportation in animals is the excretory system. Waste products produced inside the body can be harmful if they are not removed. Kidneys filter waste materials and excess water from the blood and convert them into urine. The urine travels through ureters and gets stored in the urinary bladder before leaving the body. The chapter also explains the significance of pulse rate. Pulse can be felt where arteries are close to the skin, such as the wrist. It indicates the heartbeat rate and helps doctors understand the condition of the circulatory system.
Transportation in Plants
Plants also need a transportation system because water and minerals absorbed from the soil must reach all parts of the plant. Similarly, food prepared in leaves during photosynthesis needs to be distributed throughout the plant body.
Plants contain two specialized tissues called xylem and phloem. Xylem transports water and minerals from roots to leaves and other plant parts. Phloem carries prepared food from leaves to different parts of the plant where it is needed for growth and storage. Roots absorb water and minerals from the soil through tiny root hairs. These substances move upward through the stem with the help of xylem tissues. The movement of water in plants is also supported by transpiration, which is the loss of water vapor from leaves through tiny pores called stomata. Transpiration creates a pulling force that helps water rise upward.
Food produced during photosynthesis is transported by phloem. This movement is called translocation. Unlike water movement, food transport can occur both upward and downward depending on the plant’s requirements. Students often find diagrams and tissue functions confusing, but exemplar questions simplify these concepts by relating them to practical observations. Solving different types of questions also improves analytical thinking and scientific understanding.
Importance of NCERT Exemplar Questions in This Chapter
The NCERT Exemplar Solution exercises of this chapter are highly useful because they focus on conceptual learning instead of simple memorization. Questions related to blood circulation, heartbeat, xylem, phloem, and excretion encourage students to understand how living organisms survive through coordinated systems.
These solutions also help students improve answer-writing skills for school exams. Many questions test reasoning abilities, such as why blood is called a connective tissue or how transpiration benefits plants. By practicing regularly, students can identify important scientific terms and explain processes in a structured manner. The chapter develops curiosity about how the human body and plants function in daily life. Students begin to understand the importance of healthy habits, proper hydration, and balanced nutrition for maintaining an efficient circulatory system. Similarly, they learn why plants require proper watering and environmental conditions for survival.
The explanations included in exemplar solutions simplify difficult concepts into easy language. This helps students revise the chapter quickly before examinations and build confidence while solving objective and descriptive questions.