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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

How is the four chambered human heart linked with high energy requirement?Why is double circulation considered more effective than single circulation?How do thick artery walls and valves in veins match their functions?Why is the structure of capillaries more suitable than arteries for exchange of substances?Why is lymph called a supporting system of blood circulation?What is the main difference between human blood transport and plant xylem transport in terms of driving force?Why is it correct to link translocation in phloem with energy requirement?Why is it scientifically wrong to consider excretion and egestion the same?If reabsorption does not occur after filtration in nephrons what problem will the body face?Why can dialysis be understood like an artificial kidney?How is waste management possible in plants even without special excretory organs?If nutrition is normal but respiration is disturbed why will energy availability decrease?Why are photosynthesis and respiration called complementary in the material cycle?Why is diffusion alone not enough for life processes in multicellular organisms?Why is exchange of substances by simple diffusion more possible in unicellular organisms?How does the combined work of lungs and circulatory system make cellular respiration possible?If removal of carbon dioxide is disturbed why can the body's internal balance be affected?Why is the transport system still necessary after digestion is completed?If digested substances are not absorbed why will there be energy deficiency despite eating food?Which is the most correct sequence of energy flow in life processes?