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
If plant roots get enough water but the leaf stomata remain continuously closed, which effect is most likely?Which raw material is considered the source of oxygen released during photosynthesis?What is the correct order of food intake and digestion in Amoeba?If salivary glands do not work properly, the initial digestion of which food component will be most affected?Why can protein digestion be affected if hydrochloric acid is low in the stomach?Why is bile important in fat digestion even though it has no digestive enzyme?If villi are absent in the small intestine, why may the body get less energy even after digestion is complete?What problem will occur in the oesophagus if peristalsis stops?If pancreatic juice does not reach the small intestine, which effect is most correct?In which process is the formation of carbon dioxide by yeast during fermentation clearly seen?If alveolar walls become thick, what will happen to gas exchange?Why is it necessary for the human respiratory surface to be moist and thin?Why is the respiratory surface kept inside the body in terrestrial organisms?Why do fish need to keep water flowing through the mouth over the gills?How is double circulation in humans related to high energy demand?If blood from the right and left sides of the heart mixes more, what will be the main disadvantage?Why do arteries have thick and elastic walls?What problem may occur if veins do not have valves?Why are capillaries most suitable for exchange of materials in tissues?If blood platelets are low, which problem may increase after an injury?