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Subjects

Science

Life Processes

जीवन प्रक्रियाएँ

In this Class 10 Science topic from the chapter “World of Living,” students explore the essential processes that keep organisms alive and functioning. They learn how plants and animals obtain and use nutrition, release energy through respiration, transport substances such as water, minerals, gases and food, and remove metabolic wastes through excretion. The topic connects these ideas with photosynthesis and the roles of major human body systems, helping students understand how living organisms maintain life through coordinated biological activities.

Practice questions

What major purpose do thin capillary walls serve in the body?If valves in veins do not work properly, what problem is most likely?How is the lymphatic system a support to blood circulation?Why is reabsorption necessary after filtration in a nephron?How do plants deal with wastes even without special excretory organs?Why is the relationship between nutrition and respiration so central to life processes?Why can photosynthesis and respiration be considered complementary in the cycling of materials?If a multicellular organism has no transport system, why will its distant cells be affected?Why do unicellular organisms have less need for a complex transport system?If removal of carbon dioxide from the blood is disturbed, what may happen to the body?If digested food is not absorbed why will the body remain weak even after eating?Based on energy flow which sequence of life processes is correct?If food is being made in leaves how will roots get an energy source?From the view of coordination in life processes how are digestion, respiration and transport related?Why is diffusion alone not sufficient in multicellular organisms?How does the study of life processes show the body as an interconnected system?What is the deepest conclusion of life processes?If a leaf has chlorophyll but its stomata remain closed for a long time, what will most directly affect food formation?A plant gets light and water but does not get carbon dioxide. Which process will decrease first?When the water content of guard cells increases, stomata open. What are both a benefit and a risk for the plant?