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Tissues Test - 79

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Tissues Test - 79
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Weekly Quiz Competition
  • Question 1
    1 / -0
    Which one of the following cells is not capable of metabolizing glucose to carbon-dioxide aerobically?
    Solution
    • The presence of mitochondria means that all cells are metabolically active and are capable of aerobic respiration.
    • Since red blood cells lack cell organelles & nuclei at maturity aerobic respiration does not occur in them. 
    • The rest of the given cells have nucleus & organelles in them. 
    So, the correct option is A.
  • Question 2
    1 / -0
    Which one of the following pairs is incorrect?

    Solution
    Correct Option: C
    Explanation

    • A- Dendrites are short filaments that protrude from the cell body. 
    • B- Nucleus is a component of the cell body found in the cytoplasm of nerve cells.
    • C- Axon terminals are the distal end of the axon that is split into branches, each of which terminates with a bulb-like structure known as the synaptic knobs.
    • D- Myelin sheath is a coating comprised of lipids and proteins that wrap around the axon.
    Hence, the incorrect statement is C-Dendrite.
  • Question 3
    1 / -0
    Agranulocytes are
    Solution
    Leucocytes without clearly visible granules are called agranular leucocytes or agranulocytes. There are two types of agranulocytes: lymphocytes and monocytes.
    1. Lymphocytes: Lymphocytes comprises 20-25 percent of the total WBCs. They are usually the second most numerous type of leucocytes. They are small cells with round nuclei and little cytoplasm. They exist in two major forms, namely B and T lymphocytes and are responsible for immune response of the body.
    2. Monocytes: They are the largest leucocytes and are amoeboid in shape. They have kidney or horse-shoe shaped nuclei. They spend about 30-40 hours in the blood and then enter the tissues where they become macrophages. Macrophages are phagocytic in nature and engulf bacteria and other cellular debris.
    Hence the correct option is A.
  • Question 4
    1 / -0
    Which of the following contiguous cells lack middle lamella?
  • Question 5
    1 / -0
    Which one of the following parts of a neuron is covered by fatty sheath?
    Solution
    Neurons are the structural and functional units of the nervous system. A neuron is composed of three major parts:
    1. Cell body
    2. Dendrite
    3. Axon
    Axon is also known as the nerve fibre. It is a long fibre which arises from the cell body. One end of axon is attached to the cell body and other end is away from the cell body. Axons transmits the nerve impulses away from the cell body to a synapse or to a neuromuscular junction. Axon is covered by fatty sheath called myelin sheath. It acts as a biological electrical insulation.
    Hence, the correct option is A.
  • Question 6
    1 / -0
    Which of the following can be considered as dead mechanical tissue?
    Solution
    Sclerenchyma is the dead mechanical tissue with poor water content. The cell walls are heavily thickened by lignin. It is an important permanent tissue mainly meant for the mechanical functions.
    Hence the correct option is D.
  • Question 7
    1 / -0
    Select the incorrect option regarding the given figure of a neuron with its parts labelled as P, Q, R, S and T.

  • Question 8
    1 / -0
    Maximum and minimum Erythrocyte Sedimentation Rate (ESR) is found in which of the following infections respectively?
  • Question 9
    1 / -0
    An investigator places an isolated neuron in a calcium-free medium, gives the neuron a suprathreshold stimulus and then performs an assay to test whether neurotransmitter is released into the medium. Which of the following outcomes would you predict?
    Solution
    The influx of Calcium ions is responsible for the release of neurotransmitters from the synaptic vesicles. Since the medium lacks calcium, the release of neurotransmitters does not take place and hence no neurotransmitter is detected.
    Hence the correct option is A.
  • Question 10
    1 / -0
    Bone is a
    Solution
    • Bone is a kind of specialised connective tissue.
    • They support and protect the various organs of the body, produce RBC's and WBC's, store minerals, provide structure and support for the body, and enable mobility.
    So, the correct answer is 'Connective tissue'.
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