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
Why are villi and tiny blood vessels together important in the small intestine?If digestion is occurring in the small intestine but villi are damaged why will the body get less energy?Why is wave like muscular movement necessary in the food pipe even though gravity exists?If water absorption in the large intestine becomes excessive what will happen to faeces?What is the most basic reason for the energy difference between aerobic and anaerobic respiration?Pain and cramps in muscles during hard exercise are related to which incomplete energy process?What is one correct difference between fermentation in yeast and anaerobic respiration in muscles?If alveolar walls become thick and surface area decreases why can energy production in the body fall?When haemoglobin is low why can weakness occur even if lungs are working properly?Why can carbon dioxide be linked not only with respiration but also with excretion?Why is separation of oxygenated and deoxygenated blood in the human heart necessary for high energy life?Thick elastic walls in arteries and valves in veins are related to which main difference?If valves in veins do not work why can blood pooling in legs become more likely?Capillaries are not only a path between arteries and veins but are the site of which main function?Deficiency of platelets affects not just blood amount but which protective process?If water does not move upward in xylem which two leaf processes can be affected?If the phloem tube is cut in a stem why can food accumulate above the cut?Why is food transport in phloem considered more complex than water transport in xylem?On a hot dry day if a plant closes stomata what combined effect occurs on transpiration and photosynthesis?Why is reabsorption after filtration in the nephron life protecting?