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Biology Test 121
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Biology Test 121
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  • Question 1/10
    1 / -0.25
    Xerophthalmia is caused due to the deficiency of which vitamin?
    Solutions
    • Xerophthalmia is caused by a severe Vitamin A deficiency is described by pathologic dryness of the conjunctiva and cornea.
    • It is a medical condition in which the eye fails to produce tears.
  • Question 2/10
    1 / -0.25
    Which plant is called Herbal –Indian Doctor?
    Solutions
    Amla is used to cure many ailments naturally as well. That is why it is called Herbal Indian Doctor.
  • Question 3/10
    1 / -0.25
    Which part of the plant is used as ‘saffron’?
    Solutions
    Saffron is a spice derived from the flower of Crocus sativus, commonly known as the "saffron crocus". Saffron crocus grows to 20–30 cm (8–12 in) and bears up to four flowers, each with three vivid crimson stigmas, which are the distal end of a carpel.
  • Question 4/10
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    Chromosomes are made up of
    Solutions
    In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
  • Question 5/10
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    The type of root formed in Betel vine is
    Solutions
    The type of root formed in Betel vine is Climbing Root. Climbing roots arising from nodes attach themselves to some support and climb over it; other example: money plant.
  • Question 6/10
    1 / -0.25
    The deficiency of iodine leads to
    Solutions
    Iodine is an element that is needed for the production of thyroid hormone. The body does not make iodine, so it is an essential part of your diet. Iodine is found in various foods. If you do not have enough iodine in your body, you cannot make enough thyroid hormone. Thus, iodine deficiency can lead to enlargement of the thyroid (goiter).
  • Question 7/10
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    The saliva helps in the digestion of
    Solutions
    Digestion begins in the mouth, where chemical and mechanical digestion occurs. Saliva or spit, produced by the salivary glands (located under the tongue and near the lower jaw), is released into the mouth. Saliva begins to break down the food, moistening it and making it easier to swallow. A digestive enzyme (amylase) in the saliva begins to break down the carbohydrates (starches and sugars).
  • Question 8/10
    1 / -0.25
    Ultra violet light of Sun’s radiation is prevented from reaching the earth’s atmosphere by the layer of
    Solutions
    The ozone layer or ozone shield refers to a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation. It contains high concentrations of ozone (O3) relative to other parts of the atmosphere, although still very small relative to other gases in the stratosphere.
  • Question 9/10
    1 / -0.25
    What is the other name for Vitamin B2?
    Solutions
    • Vitamin B2 is also known as Riboflavin.
    • It can be found in grains, plants, and dairy products.
    • Vitamin B2 is a water-soluble vitamin.
    • Most of it is absorbed in the small intestine.
  • Question 10/10
    1 / -0.25
    Mercury poisoning is the main cause of which disease ?
    Solutions
    • Mercury in any form is poisonous, with mercury toxicity most commonly affecting the neurologic, gastrointestinal (GI) and renal organ systems.
    • Poisoning can result from mercury vapor inhalation, mercury ingestion, mercury injection, and absorption of mercury through the skin.
    • Mercury poisoning can result in several diseases, including acrodynia (pink disease), Hunter-Russell syndrome, and Minamata disease.
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