Class X Biology Exam Prep
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What you'll study, topic by topic
Class X Biology Exam Prep
Sample questions with model answers
Every question in the paper gets a full exam-length answer in the app — organised by marks, the way a topper writes it.
Which part of the alimentary canal absorbs most of the digested food?
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Small intestine
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Which hormone, secreted by the pancreas, regulates blood sugar levels in the body?
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Insulin
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Increasing wind speed around a plant's leaves increases its rate of transpiration, which in turn increases the rate at which water rises through the xylem - even in trees over 100 metres tall. Which of the following correctly explains this link between transpiration and long-distance water transport?
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Increased transpiration through stomata (regulated by guard cell turgor) creates a greater 'pull' that draws water upward through the continuous, dead, lignified xylem vessels via cohesion between water molecules.
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Which plant tissue is mainly responsible for the transport of water and minerals from roots to leaves?
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Xylem
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