Life Processes Worksheet-18
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Describe the mechanism of blood clotting.
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Draw a diagram of the front view of human heart and label any six parts including at least two, that are concerned with arterial blood supply to the heart muscles.
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Differentiate between photosynthesis and respiration.
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How does intestinal juice contribute to the digestion of proteins? What provides an alkaline pH in the small intestine?
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Name any three enzymes secreted by pancreas. Specify the substrate and the product of each.
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Describe the structure and the main digestive function of liver.
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Draw a labelled diagram of a portion of human alimentary system showing the location of liver, pancreas and gall bladder and their associated ducts.
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Draw a diagram of human alimentary canal starting from stomach and ending at anus. Label any six parts.
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Draw a diagram to show the internal structure of human heart. Label six parts in all including at least three valves
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Explain why photosynthesis is considered the most important process in the biosphere.
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Draw a diagram of the vertical section of human heart to show the internal structure. Label any one of the heart chambers and any other five parts.
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How does liver serve both as a digestive as well as an excretory organ?
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Draw a labelled diagram of the detailed structure of a nephron.
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How do plants obtain food? What are the two phases of photosynthesis?
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Name the organelle in which photosynthesis occurs. Discuss the role of chlorophyll in photosynthesis.
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Describe the process of nutrition in Amoeba.
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State the difference between breathing and respiration.
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Give three points of distinction between aerobic and anaerobic respiration.
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What are stomata and lenticels? What is their role in respiration?
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What happens to the rate of breathing during vigorous exercise and why?
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Describe the stages involved in the process of respiration in mammals.
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Differentiate between tracheoles and bronchioles.
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Bring out the differences between inspiratory and expiratory muscles.
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What are the different salivary glands present in man? Mention their main functions.
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How does gaseous exchange take place in Amoeba?
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Describe the difference between nutrition in plants and animals.
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How does gaseous exchange take place in fish?
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Describe the structure of chloroplast with a diagram.
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Distinguish between intracellular and extracellular digestion.
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With a schematic diagram explain the overall process of respiration.