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Life Processes Test - 57

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Life Processes Test - 57
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  • Question 1
    1 / -0
    The phenomenon of removing of waste product from the body is known as:
    Solution
    Excretion is the process by which waste products of metabolism and other non-useful materials are eliminated from an organism. It eliminates the toxic substances from the body and helps in metabolic activity. Urea is considered as the major excretory product.
    So, the correct answer is option D.
  • Question 2
    1 / -0
    Double-walled cup shaped structure present in nephron is known as _______.
    Solution
    The Bowman's capsule is a part of the nephron. It is a double-walled, cup-shaped structure around the glomerulus of each nephron of the vertebrate kidney. It serves as a filter to remove organic wastes, excess inorganic salts, and water. It is also called the malpighian capsule.
    So, the correct answer is option C.

  • Question 3
    1 / -0
    The organisms that depend upon the food produced by autotrophs are called
  • Question 4
    1 / -0
    Trachea branches into two thinner tubes called
  • Question 5
    1 / -0
    The narrowest and most numerous tubes of lungs are termed as
  • Question 6
    1 / -0
    What happen to the lime water, when we exhale air into it?
  • Question 7
    1 / -0
    Gaseous exchange in plants take place through _____ and ____.
  • Question 8
    1 / -0
    The actual site of gaseous exchange in the human respiratory system is
    Solution
    The primary function of the respiratory system is to exchange oxygen (O$$_2$$) and carbon dioxide (CO$$_2$$). The external nostrils up to the terminal bronchioles constitute the conducting part whereas the alveoli and their ducts form the respiratory or exchange part of the respiratory system.
    The conducting part transports the atmospheric air to the alveoli. Exchange part is the site of actual diffusion of O$$_2$$ and CO$$_2$$ between blood and atmospheric air. The alveolus is richly supplied with blood capillaries which allow the exchange of gases through it.
    So, the answer is C.
  • Question 9
    1 / -0
    Plaque is 
  • Question 10
    1 / -0
    The ultimate cause of the movement of water against gravity in a tree is:
    Solution

    Transpiration is a process of evaporation of water from leaves which creates a  transpirational pull that helps water to move through the roots of a plant against gravity.
    So, the correct option is B.
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