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Tissues Test - 71

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Tissues Test - 71
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  • Question 1
    1 / -0
    Muscular tissue is differentiated into _________________.
    Solution
    Muscular tissue is a type of animal tissue that is soft and is responsible for movement. These are of 3 types - unstriped (i.e. not having stripes), striated (i.e. series of bands appear due to the presence of sarcomeres) & cardiac (i.e. it constitutes the main tissue of walls of the heart). 
    Hence the correct answer is B. 
  • Question 2
    1 / -0
    Smooth muscles occur in __________.
    Solution
    Smooth muscles are the involuntary muscles. Smooth muscles or involuntary muscles control such movements. They are also found in the iris of the eye, in ureters and in the bronchi of the lungs.
    Hence the correct answer is D.
  • Question 3
    1 / -0
    Mast cells occur in ______________.
    Solution
    Mast cells are present in the connective tissue and are derived from bone marrow.  They are migrant immune cells that provide protection to the body by releasing histamines and other substances during inflammation or allergic reactions.  Hence the correct answer is A.
  • Question 4
    1 / -0
    The mineral found in red pigment of vertebrate blood is:
    Solution
    The red pigment of vertebrate blood is hemoglobin. It is a conjugated protein, composed of a protein called globin and a $$Fe^{2+}$$ complex called heme. Thus, the mineral present in the red pigment (hemoglobin) of vertebrate blood is iron.

    So, the correct answer is option B.
  • Question 5
    1 / -0
    Which of the following is a loose connective tissue ?
    Solution
    A. Areolar
    EXPLANATION: Areolar tissue is the most spread loose connective tissue of the body. It has thin and relatively few fibres and cells. Areolar tissue is found surrounding the blood vessels, muscles and organs. This tissue can fill the spaces between the organs and connects the skin to underlying muscle. 
  • Question 6
    1 / -0
    Multinucleate cell is seen in
    Solution
    Striated muscles have transverse dark and light bands due to the presence of the sarcomere. They have  multinucleated, cylindrical and unbranched cells.
    So, the correct answer is 'Multinucleate'.
  • Question 7
    1 / -0
    In nerve cells, proteins are synthesised in ____________.
    Solution
    Answer is option (A) Cell Body.
    Nerve cell is also called Neuron. Every nerve cell is divided into 3 parts: Cell body, Axon, Dendrites.
    Protein synthesis occurs in specific structures called Nissl's granules present in the cell body of neurons.
    So, answer is option (A) Cell body.  

  • Question 8
    1 / -0
    ____________ is present at the region of joining of two cardiac muscle cells 
    Solution
    The intercalated disc is a unique feature of cardiac muscle, which is present in the region of joining of two cardiac muscle. This intercalated disc help in the contraction of heart muscles in synchronization.
    On the other hand, the basement membrane and fibres are features of skeletal muscle, and Ligaments are the connective tissue that connects two bones at the joint. Hence the correct answer is C.
  • Question 9
    1 / -0
    Number of WBCs per $$mm^3$$ of human blood is ideally.
    Solution
    White blood cells, or leukocytes, are a part of the immune system. They help our bodies fight infection. White blood cells circulate in the blood so they can be transported to an area that has developed an infection. In normal adult bodies there are 4,000 to 10,000 (average 8,000) white blood cells per microliter of blood. White blood cells are found in blood and lymph, cerebrospinal fluid, lymphatic ganglions, connective tissue, and inflammatory effusions, as they are mobile and migratory. Their average dimension varies between 9 and 18 µm. Normal WBC count is about 8000 leukocytes per cubic millimeter. 

    So, the correct answer is '8000'.
  • Question 10
    1 / -0
    RBC's are nucleated in
    Solution
    Most mammalian red blood cells are highly evolved and have lost their nucleus. Unlike typical mammalian red blood cells, those from amphibians, such as frogs, contain a DNA-bearing nucleus that is visible in the center of the cell. All non-mammalian vertebrates have nucleated RBCs.

    So, the correct answer is 'Frog'.
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