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 is double circulation important in humans?Why is lymph considered a support to the blood transport system?How does transpiration help water rise in a plant?Why are filtration and reabsorption both necessary in urine formation?What problem may occur if kidneys do not filter blood properly?When may dialysis be needed?Which method can plants use to remove their wastes?What is the relation between nutrition and respiration?What is the main difference between digestion and absorption?What is the difference between respiration and exchange of gases?Why would multicellular organisms face problems without a transport system?Why is exchange of substances relatively simple in unicellular organisms?Which two systems work together to deliver oxygen and remove carbon dioxide in humans?Which sequence best explains the flow and use of energy in life processes?What does the overall study of life processes explain most effectively?If a wax-like substance closes the stomata on plant leaves, what will be the first effect on photosynthesis?The rate of photosynthesis will become very low if a plant gets light but does not get enough of which substance?What happens to stomata when water content in guard cells decreases?What is the most suitable reason for a negative starch test in a green plant kept in darkness?What is the main basis of difference between autotrophic and heterotrophic nutrition?