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Tissues Test - 29

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Tissues Test - 29
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Mast cells occur in ______________.
    Solution
    Correct answer ( A) Areolar tissue
    Mast cells are cells that secrete histamine and heparin during allergic response and are specialized components of the areolar tissue.
  • Question 2
    1 / -0
    Compounds released by WBCs, which raise the body's temperature, are known as
    Solution
    When your body temperature rises because of an infection, it's called a fever.  Fevers are caused by chemicals called pyrogens flowing in the bloodstream. Pyrogens make their way to the hypothalamus in the brain, which is in charge of regulating body temperature. So, the correct option is "C" (Pyrogens).
  • Question 3
    1 / -0
    WBC is called true cell because of
    Solution
      • The components of blood plasma are red blood cells, white blood cells and platelets.
      • Of these, only white blood cells are true cells or complete cells as they have a nucleus, and other organelles such as the Golgi apparatus, mitochondria, nucleolus, centrioles, rough endoplasmic reticulum, smooth endoplasmic reticulum and peroxisomes.

      Thus, the correct answer is option (A).

    • Question 4
      1 / -0
      Which one of the following cells are found in connective tissues?
      Solution
      • Connective tissues are made up of a matrix consisting of living cells and a non-living substance, called the ground substance.
      • The cells present in different types of connective tissues are osteocytes, osteoblasts, & osteoclasts (Bones), macrophages, adipocytes (Adipose tissue), fibroblasts (loose & dense connective tissue), red blood cells & white blood cells (blood), etc.

      So, the correct answer is option D.
    • Question 5
      1 / -0
      Trabeculae is the transformation of
      Solution
      Trabeculae refers to the projections from the cell wall that extends across the cavity of certain plants. The endodermal cells elongate to form trabeculae and they help in connecting the two tissues.
      Therefore, the correct answer is option B.
    • Question 6
      1 / -0
      Myology is the study of
      Solution
      "Myo" refers to "Muscles". Myology is the study of the muscular system, including the study of the structure, function, and diseases of muscle.
      So, the correct answer is 'Muscles'
    • Question 7
      1 / -0
      pH of blood in artery and vein is

      Solution
      pH of blood is more in the vein as compared to that in the artery as the plasma of the vein contains deoxygenated blood and dissolved $$CO_2$$ in the form of bicarbonate ions. These ions increase the alkalinity of the plasma, therefore the pH value of blood is greater in the vein as to that of the artery
      So, the correct answer is 'More in vein and less in artery'
    • Question 8
      1 / -0
      Bulliform or motor cells are present in
      Solution
      The large, bubble-shaped epidermal cells that occur on the upper surface of the leaves of monocots are called as bulliform cells. They help in the unfolding of developing leaves. It is involved in the rolling and unrolling of mature leaves in response to alternating wet and dry periods.
      Thus, the correct answer is option D.
    • Question 9
      1 / -0
      Dermal tissue is derived from
      Solution
      Dermatogen is also known as protoderm. It further divides to form the three dermal layers - epidermis, endodermis and hypodermis. These form the protective layers of the plant.
      Therefore, the correct answer is option B.
    • Question 10
      1 / -0
      Statements-

      1. Carbonic anhydrase is present in the erythrocytes.

      2. In erythrocytes the carbon dioxide combine with water and is transported.

      Solution
      The correct option is A.
      Carbonic anhydrase, enzyme found in red blood cells catalyzes the interconversion of carbon dioxide (CO2) and carbonic acid (H2CO3). Carbonic anhydrase plays an important role in respiration by influencing CO2 transport in the blood.
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