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Transportation in Plants and Animals Test - 8

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Transportation in Plants and Animals Test - 8
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Blood of which of the following vessels in mammals carries the least percentage of urea?
    Solution
    Blood of dorsal aorta in mammals carries the least percentage of urea.
  • Question 2
    1 / -0
    Base of heart is formed by
    Solution
    Base of heart is formed by left atrium. It is separated from the vertebral column by the esophagus and aorta.
  • Question 3
    1 / -0
    Pulmonary veins
    Solution
    Pulmonary veins carry pure blood from lungs to heart.There are four pulmonary veins, two from each lung. The pulmonary veins are among the few veins that carry oxygenated blood.
  • Question 4
    1 / -0
    Which of the following statements is true?
    Solution
    Option (4) is the correct answer.
  • Question 5
    1 / -0
    Arteries are
    Solution
    Arteries are thick walled and blood flows under high pressure.
  • Question 6
    1 / -0
    Blood capillaries are made of
    Solution
    Blood capillaries are made of endothelium only.The blood capillaries are where the important functions of the circulation take place: the exchange of material between circulation and cells.
  • Question 7
    1 / -0
    Purkinje fibres are found in
    Solution
    Purkinje fibres are found in the heart. They are specialized conducting fibers.
  • Question 8
    1 / -0
    One of the chief differences between circulatory system of frog and man is that there is no
    Solution
    One of the chief differences between circulatory system of frog and man is that there is no renal portal system in man.
  • Question 9
    1 / -0
    Circulation of blood was discovered by
    Solution
    Circulation of blood was discovered by Harvey.
  • Question 10
    1 / -0
    pH of blood in arteries and veins is
    Solution
    pH of blood in arteries is more and less in veins because of their gaseous combinations as ateries contain oygenated blood and veins contain deoxygenated blood.
  • Question 11
    1 / -0
    The mature mammalian red blood cells are incapable of further division because
    Solution
    The mature mammalian red blood cells are incapable of further division because they lack nuclei.
  • Question 12
    1 / -0
    The enzyme liberated by platelet is
    Solution
    The enzyme liberated by platelet is thromboplastin. It helps in blood coagulation.
  • Question 13
    1 / -0
    Blood pressure is measured in
    Solution
    Blood pressure is measured in arteries,as it is the intra-arterial pressure generated by the pulsatile flow of blood through an artery.
  • Question 14
    1 / -0
    Blood pressure is controlled by
    Solution
    Blood pressure is controlled by adrenal gland. It produces aldosteronewhich helps to control blood pressure by managing the balance of potassium and sodium.
  • Question 15
    1 / -0
    Which of the following is a function of sieve tubes?
    Solution
    Translocation of food is a function of sieve tubes. Sieve tube elements are a specialised type of elongated cells in the phloem tissue of flowering plants. The ends of these cells are connected with other sieve tube members and together they constitute the sieve tubes.
  • Question 16
    1 / -0
    Which of the following plant tissues takes part in translocation of food?
    Solution
    Phloem takes part in translocation of food.The phloem is concerned mainly with the transport of soluble organic material made during photosynthesis. This process of transportation is called translocation.
  • Question 17
    1 / -0
    Which of the following plant tissues help(s) in the bidirectional translocation of minerals?
    Solution
    Sieve tubes help in the bidirectional translocation of minerals. They are elongated, food-conducting cells in phloem in angiosperms.
  • Question 18
    1 / -0
    Which of the following tissues help in the transportation in plants?
    Solution
    Conducting tissues help in the transportation in plants. They are Xylem and Phloem. Xylem helps in transport of water where as Phloem helps in conduction of food.
  • Question 19
    1 / -0
    Which of the following causes the entry of water into root hairs?
    Solution
    Suction pressure causes the entry of water into root hairs.
  • Question 20
    1 / -0
    What do you call the passage of water across a selectively permeable membrane?
    Solution
    Osmosis is the passage of water across a selectively permeable membrane.It is a vital process in biological systems, as biological membranes are semipermeable.
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