Class10 – Life Process- biology Class10 - Life Process- biology Mock Test. This Test Consist of 20 QuestionsTotal Time - 20 -Minutes 1. Plant X is a vascular and invasive plant species that grows densely over the surface of a lake at a very high rate, due to pollution in water. It has been linked to oxygen depletion of the water, in spite of the fact that it is photo-synthetic.Which of the following accounts for this contradiction? When X dies, the bacteria that decompose its dead body consume the oxygen dissolved in water and grow rapidly While being photosynthesis, X consumes oxygen at a faster rate than it releases the same, because of its high rate of growth None of these Because X is highly invasive, it incorporates a large quantity of oxygen in its biomass None 2. 'The master chemists of our body are the kidneys'. Justify the given statement. Kidneys maintain the chemical composition of blood. Kidneys filter all chemicals in the body. Kidneys store the chemicals accumulated in the body. Kidneys eliminate all chemicals absorbed by the body None 3. Blood pressure in the veins is lower than that of arteries. The best hypothesis to explain this is that Capillaries offer resistance to the blood flow Veins have thinner walls than arteries Veins are farther from the heart Most veins carry blood up-hill None 4. Incomplete double circulations is found in: 5. The fluid present between the blood capillaries and the cell membrane, through which gasses, nutrients, and metabolic wastes are exchanged between the blood and the cells are called as: 6. Which of the following statements is/are correct?i) All green plants can prepare their own food.ii) Most animals are autotrophs.iii) Carbon dioxide is not required for photosynthesis.iv) Oxygen is liberated during photosynthesis.Choose the correct answer from the options below (ii) and (iii) (ii) only (i) and (iv) (i) and (iii) None 7. A student poured alcohol on a plant continuously for a long time. Why can the plant not prepare its own food? Alcohol dissolved all the minerals present in the plant. Alcohol does not let the plant to absorb carbon dioxide from the air. Alcohol absorbed all the food prepared by the plant. Alcohol dissolved chlorophyll present in the plant None 8. Given is an animal followed by three terms or features. Choose the term which does not match with the animal.Amoeba. Food vacuole None of the above Nucleus Tentacle None 9. Match the columns.List 1 List 2A. Regulation 1. The removal of metabolic waste from an organism.B. Reproduction 2. The chemical process of oxidizing organic molecules to release energy.C. Respiration 3. The replication of an organism.D. Excretion 4. The control and coordination of chemical processes within the organism. A- 3, B- 4, C- 2, D- 1 A- 4, B- 3, C- 2, D- 1 A- 4, B- 2, C- 3, D- 1 A- 4, B- 3, C- 1, D- 2 None 10. Group A Group B1. Bowman's capsule A. Bundle of blood capillaries seen in Bowman's capsule2. Glomerulus B. Renal dialysis3. Reabsorption C. The cup-shaped upper end of the nephron of kidney4. Artificial kidney D. Observed in marine and terrestrial animals 1- C, 2- A, 3- D, 4- B 1- B, 2- A, 3- D, 4- C 1- A, 2- C, 3- D, 4- B 1- A, 2- D, 3- B, 4- C None 11. Oxygen liberated during photosynthesis comes from? 12. Utilization, rearrangement, and decomposition of complex organic matter, known as 13. Choose the correct answer from the alternatives given.In an one-circuit circulatory system, blood pressure: is constant throughout the system is higher at the intestinal capillaries than at the gill capillaries drops significantly after gas exchange has taken place cannot be determined None 14. Which one of the following helps in the upward movement of water and dissolved minerals from the roots to the leaves through the stem ? transaction transportation transpiration translocation None 15. Pancreatic amylase acts on 16. A transport system is needed to transport(i) Nutrients, oxygen and hormones from the place, they are absorbed or received to the cells.(ii) Waste products from the place they are formed to the place from where they are eliminated outside.(iii) Heart beat, chromosome. (i) , (ii) and (iii) correct (i) and (iii) correct (i) and (ii) correct (ii) and (iii) correct None 17. Consider the following statements.(a) In muscles, anaerobic respiration produces carbon dioxide, water and energy.(b) Artificial kidney is a device to remove nitrogenous waste products from blood through dialysis.(c) Food is translocated inside the plants through phloem.Which of the above statements are correct? None of the above b and c a and b a and c None 18. People suffering from high blood pressure should take which of the following precautions to avoid an excessive rise in their blood pressure? Avoid standing Increase their body weight Avoid emotional disturbances and excitement Sleep as much as possible None 19. Choose the correct pair of sentences that are true to photosynthesis (i) Sunlight, carbon dioxide, chlorophyll and water are necessary.(ii) Oxygen is absorbed.(iii) Leaves carry out photosynthesis.(iv) Proteins are made during photosynthesis. (iii) and (iv) (i) and (iv) (i) and (iii) (ii) and (iv) None 20. Which of the following statements is/are true(T) or false(F) regarding nutrition in organisms?(i) Photosynthesis also occurs in leaves having colors other than green.(ii) The process of photosynthesis first produces a simple carbohydrate called glucose which then gets converted into a complex carbohydrate called starch.(iii) Cuscuta is a yellow-colored plant but it can synthesize its own food by photosynthesis.(iv) In a symbiotic association, Rhizobium bacteria derive their nutrition from fungus. (i)-T, (ii)-T, (iii)-T, (iv)-F (i)-T, (ii)-T, (iii)-F, (iv)-F (i)-F, (ii)-T, (iii)-F, (iv)-F (i)-F, (ii)-F, (iii)-F, (iv)-T None Time's upTime is Up! 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