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Human Health and Disease Test - 20

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Human Health and Disease Test - 20
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Weekly Quiz Competition
  • Question 1
    1 / -0
    The adult Wuchereria bancrofti infects: 
    Solution
    Wuchereria bancrofti is a parasite of man and causes lymphatic filariasis. The adult Wuchereria bancrofti infects and live in lymph vessels and lymph glands. It is a viviparous nematode. 
    So, the correct answer is option D.
  • Question 2
    1 / -0
    Ascaris completes its life cycle in:
    Solution
    Ascaris is a common roundworm of the small intestine of humans and completes its whole life cycle in man only. 
    So, the correct answer is option A. 
  • Question 3
    1 / -0
    HIV infection can be detected through 
    Solution
    C (ELISA test) is the correct answer
    ELISA test is enzyme linked immunosorbant essay, it is used to detect the HIV antibody. It detects the antibodies that the body makes in response to the virus.
  • Question 4
    1 / -0
    An intermediate host is absent in case of: 
    Solution
    Ascaris is a monogenetic parasite; so there is no intermediate host only one host is required for the development. Liver fluke uses snail, Tapeworm uses pig and Plasmodium uses mosquito as an intermediate host.
    So, the correct answer is 'Ascaris'.
  • Question 5
    1 / -0
    Which larval stage of Ascaris is infective?
    Solution
    The first larval stage is formed by segmentation in gastrula and is called as noninfectious rhabditoid larva. Moulting of rhabditoid larva within eggshell forms second stage infectious rhabditoid larva or juvenile. Contaminated food or water transmits the infectious juvenile to host's small intestine wherein dissolution of egg shell by digestive juices set the second stage infectious juveniles free. From intestine, these are carried to liver via portal circulation and to heart via pulmonary circulation. Two successive moultings in lung alveoli release the third and fourth larval stage. The fourth larval stage makes their way from the respiratory path through the throat to small intestine again. Reaching intestine again includes their maturation into adult sexually mature worms. Thus, the correct answer is option C.
  • Question 6
    1 / -0
    Bhang, ganja and hashish (charas) are obtained from
    Solution
    Cannabis sativa is an annual herbaceous plant in the Cannabis genus, a species of the Cannabaceae family. People have cultivated Cannabis sativa throughout recorded history as a source of industrial fibre, seed oil, food, recreation, religious and spiritual moods and medicine. It's seeds are chiefly used to make hempseed oil which can be used for cooking, lamps, lacquers or paints. They can also be used as caged-bird feed, as they provide a moderate source of nutrients for most birds. The flowers contain psychoactive chemical compounds, known as cannabinoids that are consumed for recreational, medicinal, and spiritual purposes. When so used, preparations of flowers (marijuana) and leaves and preparations derived from resinous extract (e.g., hashish) are consumed by smoking, vaporizing and oral ingestion. 
    Historically, tinctures, teas and ointments have also been common preparations. In traditional medicine of India, in particular, Cannabis sativa has been used as hallucinogenic, hypnotic, sedative, analgesic and anti-inflammatory agent. Bhang, ganja and hashish (charas) are obtained from Cannabis sativa. 
    Thus, the correct answer is option C.
  • Question 7
    1 / -0
    Harmful alkaloid, contained in the leaves of tobacco is

    Solution
    Nicotine is a potent parasympathomimetic alkaloid found in the nightshade family of plants (Solanaceae) and a stimulant drug. It is a nicotinic acetylcholine receptor agonist, where it acts as an antagonist. It is made in the roots  and accumulates in the leaves of the nightshade family of plants. It constitutes approximately 0.63% of the dry weight of tobacco and is present in the range of 27 g/kg of various edible plants. It functions as an antiherbivore chemical; consequently, nicotine was widely used as an insecticide in the past and nicotine analogs, such as imidacloprid are currently widely used. So, narcotic and soothing properties of tobacco is due to nicotine and not due to caffeine, aconite and codeine. Thus, the correct answer is option C.
  • Question 8
    1 / -0
    The study of the action of drugs is known as 
    Solution
    Pharmacology is the branch of the study of drug action, in which considers the site of action of drug, toxicity, side effects on plasma half life concentration, excretory by products, etc.
  • Question 9
    1 / -0
    Hemp fibres are obtained from
    Solution
    • Hemp is a commonly used term for high-growing varieties of the Cannabis sativa plant and its products, which include fiber, oil, and seed. 
    • Hemp is refined into products, such as hemp seed foods, hemp oil, wax, resin, rope, cloth, pulp, paper, and fuel. 
    • Items ranging from rope to fabrics, to industrial materials were made from hemp fiber. Hemp was often used to make sail canvas, and the word canvas derives from cannabis. 
    Thus, option B is correct.  
  • Question 10
    1 / -0
    Ascaris protects itself against digestive enzymes of the host by
    Solution
    Ascaris develops thick, tough layer called as cuticles which are resistant to the digestive juices of the host. Some anti-enzymes are also secreted by cuticle of Ascaris, which neutralizes the effect of digestive juices of the host upon the parasite
    So, the correct answer is 'Antienzymes and cuticle'
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