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Question 1. Name the respiratory pigment in human beings. Where is this pigment found? Question 2. What change in colour is observed when silver chloride exposed to sunlight? State the type of reaction? Question 3. How the glucose is breakdown in different types of respiration? Question 4. Explain water transportation and food transportation in plants? Question 5.. A solution of substance ‘X’ is used for white washing. What is the substance ‘X’? State the chemical reaction of ‘X’ with water? Question 6. What is decomposition reactions? In what condition it take place? Write its importance Question 7.. State the role of following:
(a) Hydrochloric acid (b) Villi (c) Glomerulus (d) Bile juice Question 8.. Differentiate between:
(a) Arteries, veins and capillaries
(b) Displacment and double displacement reaction
(c) Saprophytic and holozoic nutrition
(d) Oxidation and reduction reaction Question 9.. What is the site of complete digestion in our body? Name the end products formed?
Question 10.. What is observed when a solution of potassium iodide solition is added to a solution of lead nitrate? Name the type of reaction. Write balanced chemical equation? Question 11.. How is amount of urine produced is regulated? Question 12.. Describe:
(a) Lymphatic system (b) excretion in plants (c) corrosion (d) Rancidity (e) blood pressure Question 13.. Draw the diagram of following:
(a) Nephron (b) human excretory system (c) sieve tube and companian cells Question 14.. Give reasons:
(a) Why it is necessary to separate oxygenated and deoxygenated blood in human and birds.
(b) Ventricles are thick walled than atrium.
(c) Respiration considered as exothermic reaction. Question 15.. When Ferrous sulphate crystal are heated in a dry boiling tube.
(a) List any two observation?
(b) Name the type of chemical reaction? Write balanced chemical equation? Question 16.. Waht happens if lead nitrate is heated? Name the colour of fumes and residue left ? write chemical equation?
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