Life Processes Worksheet-7
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Find the odd one out :
(i) Trachea, Bronchus, Alveolus, Diaphragm.
(ii) Epiglottis, Trachea, Malpighian corpuscles, Alveoli.
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State one function of the mucus membrane inside the nasal passage.
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Name the ultimate end parts of respiratory passages in mammalian lungs.
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Name a body part where anaerobic respiration takes place.
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How much light is utilised by the plants that fall on the earth?
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Name the cells of leaf where photosynthesis takes place.
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What are the end products of respiration?
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How does oxygen reach the cells in insects?
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Why do the divers carry oxygen for artificial respiration?
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Which cartilage of larynx forms "adam's apple" in man?
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What is the role of nasal cavity in respiration?
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What is normal breathing rate in an adult man at rest?
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What is the end product of photosynthesis?
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What are the functions of HCl in our stomach?
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Where do the carotenoid pigments absorb light in the spectrum?
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Which of the two - sun plants or shade plants have more chlorophyll in their leaves?
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What are the end products of fat digestion?
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Why are the digestive enzymes called as hydrolases?
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Which colour of the visible spectrum is most effective in photosynthesis?
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Why is the rate of photosynthesis more during a bright sunny day as compared to a cloudy day?
Answer:
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(i) Diaphragm, (ii) Malpighian Corpuscles.
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It makes the air moist and traps the dust particles and microorganisms.
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Alveoli.
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Muscles.
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0.2%.
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Palisade cells.
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CO2 and H2O.
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Through network of trachea.
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Because the divers are air breathers and not water breathers.
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Thyroid.
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Nasal cavity removes dust particles from air and air is made aseptic.
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15 to 18 times per minute.
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ATP and NADPH.
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(i) It maintains strong acidic pH, (ii) It kills germs.
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They absorb light in the violet to blue regions.
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Shade plants.
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Fatty acids, monoglycerides and glycerol.
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Because they catalyse the breakdown of larger organic molecules with the addition of water.
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Red.
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Because intensity and temperature is higher on a bright sunny day.