CBSE ADDA

Life Process class 10 Trend setter solved CBSE Test paper-05 SCIENCE & TECHNOLOGY (Class-10)        Chapter 6 : Life Process 1. Name the tissue associated with the conduction water in plants. (1 mark) Ans: Xylem tissue 2. What is source of O 2 liberated during photosynthesis? (1 mark) Ans: The main source of oxygen in the atmosphere during photosynthesis is photosynthetic [green] plants, cyanobacteria and algae which releases oxygen during photosynthesis. Other sources include the photolysis of atmospheric water and nitrous oxides by ultraviolet light and the free oxygen released from the silicates and mineral oxides present in the earth crust.  3. In which part of the digestive canal food is absorbed? (1 mark) Ans: small intestine 4. Which organelle of the cell is known as ‘power house’? (1 mark) Ans: Mitochondria 5. Why oxygenated and deoxygenated blood is separated in mammals and birds? (1 mark) Ans: Oxygenated and deoxygenated blood is separ

Life Process class 10 Trend setter solved CBSE Test paper-04 SCIENCE & TECHNOLOGY (Class-10)        Chapter 6 : Life Process 1. Name the artificial method for the removal of liquid nitrogenous waste from body. (1 mark) Ans:  D ialysis 2. Name any three waste products of plants? (1 mark) Ans:  The gums, resins and latexes 3. Name three excretory organs of man. (1 mark) Ans:  lungs, kidney and skin 4. Name the part of plants which helps in transportation. (1 mark) Ans:  Phloem tissue 5. Name the juice secreted by the liver. (1 mark) Ans:  Bile 6. What is the function of digestive enzymes? (2 marks) Ans:  Digestive enzymes such as amylase, lipase, pepsin, trypsin, etc. help in the breaking down of complex food particles into simple ones. These simple particles can be easily absorbed by the blood and thus transported to all the cells of the body. 7.   What is the role  of saliva in the digestion of food? (2 marks) Ans:  The salivary glands secrete the first of th

CBSE ADDA CBSE TEST PAPER-03 SCIENCE & TECHNOLOGY (Class-10) Chapter 6 : Life Process 1.  What are the raw materials  for photosynthesis? (1 mark) Answer : The raw materials and other necessary items required for photosynthesis are Sunlight, Water, CO 2 and Chlorophyll. 2. Give the energy transformation that takes place in the process of photosynthesis. (1 mark) Ans: Light energy converted into chemical energy 3. Write the equation of photosynthesis. (1 mark) Ans: Sunlight 6CO2 + 12H2O -----------> C6H12O6 + 6O2 + 6H2O chlorophyll 4. What is the respiratory organ of earthworm? (1 mark) Ans: Gaseous exchange occurs through moist skin by diffusion 5. Give the function of xylem. (1 mark) Ans:  Transport water and mineral to green leaves 6. Write any two functions of large intestine to m

Trend setter CBSE TEST PAPER-02 SCIENCE & TECHNOLOGY (Class-10)  Chapter 6 : Life Process 1. Point out of differences between an artery and vein. (1 mark) Ans: Any one: Artery 1. Vessels which carry blood from the heart to various body parts 2. Arteries carry oxygenated blood from the heart except pulmonary artery 3. Arteries have thick elastic muscular walls 4. Valves are absent 5. Blood flows under high pressure Vein 1. Vessels which carry blood from the various body parts to the heart 2. Veins carry deoxygenated blood from the various body parts except pulmonary vein 3. Veins have thin non elastic walls 4. Valves are present to prevent the backward flow of blood 5. Blood flows under low pressure 2. Write the two functions of kidneys.  Ans.  Osmoregulation and excretion. 3. Name the largest artery in human body. (1 mark) Ans: The largest artery in the human body is the aorta. It carries oxygenated blood to the whole body from the h