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Biology Test 109
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Biology Test 109
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  • Question 1/10
    1 / -0.25
    Edible part of coconut is ______.
    Solutions

    • Endosperm is a tissue produced inside the seeds of most of the flowering plants around the time of fertilization.

    • The endosperm of coconut contains a large quantity of clear liquid which is called "coconut milk" or coconut water.

    • Scientific Name of coconut is Cocos nucifera.

  • Question 2/10
    1 / -0.25
    What is the mode of nutrition of mushroom?
    Solutions
    • Saprophytic nutrition is the type of nutrition where the organism feeds on dead and decaying matter.
    • Example - Rhizopus, Mucor, Yeast, Agaricus(mushroom).
  • Question 3/10
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    Grave’s disease is casued due to :
    Solutions
    Graves' disease is an immune system disorder that results in the overproduction of thyroid hormones (hyperthyroidism). Although a number of disorders may result in hyperthyroidism, Graves' disease is a common cause. Signs and symptoms of hyperthyroidism may include irritability, muscle weakness, sleeping problems, a fast heartbeat, poor tolerance of heat, diarrhea, and weight loss.

    Thyroid and parathyroid are organs with different functions. 
  • Question 4/10
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    Which enzyme is obtained from Red gram?
    Solutions
    • Diastase is an enzyme group that is originally found in malt and it is produced when the germination of the seeds happens.
    • Diastase enzyme is obtained from Red gram.
  • Question 5/10
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    Longest cell in human body is ______.
    Solutions
    Neurons are cells within the nervous system and carry messages. The longest axons in the human body are those of the sciatic nerve, which run from the base of the spinal cord to the big toe of each foot. The diameter of axons is also variable.
  • Question 6/10
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    Which of the following symbiotic associations forms lichen?
    Solutions
    Lichen is an algae and a fungus. A lichen is a composite organism that arises from algae or cyanobacteria (or both) living among filaments of a fungus in a symbiotic relationship. The combined life form has properties that are very different from the properties of its component organisms. Lichens come in many colors, sizes, and forms. The properties are sometimes plant-like, but lichens are not plants.
  • Question 7/10
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    Daltonism (Protanopia) is the form of colour blindness in which the patient cannot see
    Solutions
    Red-green color blindness is split into two different types: Whereas people affected by protan color blindness are less sensitive to red light, deuteranopia or deuteranomly (the second type of red-green color blindness) is related to sensitiveness on green light. Protans have either defective long-wavelength cones (L-cones) or the L-cones are missing at all. If they are missing it is called protanopia or sometimes red-dichromacy. Affected persons are dichromats because they have only two working cone types, short- and medium-wavelength, compared to persons with normal vision with three different cone types.
  • Question 8/10
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    Chromosomes are made up of
    Solutions
    In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
  • Question 9/10
    1 / -0.25
    Osteocytes are found in______.
    Solutions

    • Osteocytes are the most abundant cells in bone, comprising more than 90% of cells within the matrix or on the bone surfaces.

    • Osteocytes derive from osteoblasts, or bone-forming cells, and are essentially osteoblasts surrounded by the products they secreted.

    • The definition of an osteocyte is descriptive of its location (cells surrounded by mineralized matrix), not its function.

  • Question 10/10
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    Allosomes are _____.
    Solutions

      • An allosome is also referred to as sex chromosome or heterotypical chromosome.
      • The 22 pair of chromosomes are similar in all human.
      • The chromosomes of the 23rd pair are called allosomes consisting of two X chromosomes in females, and an X chromosome and a Y chromosome in males.
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