CBSE ADDA

Class 10 Trendsetter solved CBSE Test paper-02 1. What is a neuron? (1 mark) Ans: Neuron is the structural &functional unit of nervous system. 2. Give an example of plant hormone that promotes growth. (1 mark) Ans: auxins, gibberellins and cytokinins 3. What part of the brain maintains posture and equilibrium of the body? (1 mark) Ans: Cerebellum controls coordination and adjustment of movements (equilibrium) and posture 4. Which parts of the body produce growth regulators? (1 mark) Ans: Pituitary Gland 5.What is synapse ? Ans: The junction between neurons is called synapse. 5. List two functions performed by ovaries in a human female. (1 mark) Ans: (a) Produces ova or egg. (b) Hormones Oestrogen and Progesterone. 6. What does a stem (or shoot) do in a response to light? (1 mark) Ans: The stem is positively phototropic (grown towards light) 7. Name the 2 hormones secreted by pancreas. Write one function of each hormone. (2 marks) Ans: (i) Insulin

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