Self Studies
Self Studies
Self Studies
Self Studies

Structural Organisation in Animals Test - 83

Result Self Studies

Structural Organisation in Animals Test - 83
  • Score

    -

    out of -
  • Rank

    -

    out of -
TIME Taken - -
Self Studies

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Self Studies Self Studies
Weekly Quiz Competition
  • Question 1
    1 / -0
    Body segments are definite and well marked in
    Solution
    The cockroach has a dorsoventrally flattened, elongated and ovoid body. The whole body is covered with a thick, hard, dark brown coloured chitinous cuticle which forms the exoskeleton. The animal is well defined and segmented and is divisible into three well-defined regions as the head, the thorax and the abdomen.
    Therefore, the correct answer is option D.
  • Question 2
    1 / -0
    Give the name of blood vessel, which arises from first chamber of heart in cockroach.
    Solution
    The part of the dorsal blood vessel that extends in thoracic and head regions is called aorta. It is without chambers and opens in the anterior by a funnel-shaped opening into the hemocoel. It opens into head sinus.
    Therefore, the correct answer is option D.

  • Question 3
    1 / -0
    Physiologically, the heart of cockroach is
    Solution
    A neurogenic heart requires nervous input to contract as against myogenic heart which requires muscles. Cockroaches and crustaceans have cardiac ganglion which is a cluster of neurons on the heart wall and produces rhythmic motor output for the heartbeat.
    So, the correct answer is 'Neurogenic'
  • Question 4
    1 / -0
    Undeveloped wings are found in
    Solution
    The Blatta orientalis is one of the common Indian species of cockroaches. Blatta orientalis is about 20-30 mm long and blackish in colour. The female has vestigial wings while the male has short wings which do not reach the end of the body.
    Therefore, the correct answer is option D.
  • Question 5
    1 / -0
    Function of malpighian tubules of cockroach
    Solution
    The excretory organ of cockroach is the malpighian tubules. It is mainly involved in the secretion of metabolic waste and osmoregulation. They lie freely in the hemolymph. The distal parts of the tubules extract inorganic ions, uric acid and amino acids by active transport and water by diffusion from the surrounding hemolymph.
    Therefore, the correct answer is option C.
  • Question 6
    1 / -0
    Periplaneta americana differs from Blatta orientalis in
    Solution
    The Periplaneta americana and Blatta orientalis are two common Indian species of cockroaches. Blatta orientalis is about 20-30 mm long and blackish in color. The female has vestigial wings while the male has short wings which do not reach the end of the body.
    Periplaneta americana is the largest and about 30-50 mm long. It is differentiated from Blatta in having longer body and wings in both sexes which can fly.
    Therefore, the correct answer is option A.
  • Question 7
    1 / -0
    Yellow, white and reticular fibres are made up of 
    Solution
    Yellow fibres are made up of elastin protein, they are thinner, less numerous and branched and are pale yellow in colour. They are very elastic and remain stretched due to tension in areolar tissue. 
    White fibres are made up of collagen protein. They are most abundant fibrous elements of areolar and other connective tissues. They are long, unbranched fibres of a soluble and shining collagen protein.
    Reticular fibres are made up of reticulin protein. They are delicate, freely branching and inelastic fibres, found interwoven to form networks.
    So, the correct answer is option D.
  • Question 8
    1 / -0
    The fat body of cockroach contains
    Solution
    • Oenocytes are ectodermic cells present in the fat body of several insect species. 
    • The cells are thought to have a specialized secretory function.
    Cockroaches also possess mycetocytes harbor an endosymbiont, Blattabacterium cuenoti.
    • The trophocytes are major cells of a storage organ, the fat body, from which the stored glycogen and lipids are mobilized under starvation.
    • Therefore, the correct answer is option D.
  • Question 9
    1 / -0
    Plantulae are found in cockroach upon
    Solution
    Plantulae is found in cockroach upon pretarsus. On the underside of the tarsal segments, pulvillus-like organs called plantulae are present.  The terminal podomere is known as pretarsus, which bears two claws and a thin hairy pad, called arolium or pulvillus. The structural anatomy of the cockroach depicts that pretarsus is located between the plantulae and pulvillus. So, the correct answer is option A. 

  • Question 10
    1 / -0
    Tissue which connects skin with underlying muscle is made up of:
    Solution
    Areolar connective tissue is found between the skin and muscles, around blood vessels and nerves, and in the bone marrow. It fills the space inside the organs, supports internal organs, and helps in the repair of tissues.
    Hence, the correct option is D.
Self Studies
User
Question Analysis

  • Correct -

  • Wrong -

  • Skipped -

My Perfomance
  • Score

    -

    out of -
  • Rank

    -

    out of -
Re-Attempt Weekly Quiz Competition
Self Studies Get latest Exam Updates
& Study Material Alerts!
No, Thanks
Self Studies
Click on Allow to receive notifications
Allow Notification
Self Studies
Self Studies Self Studies
To enable notifications follow this 2 steps:
  • First Click on Secure Icon Self Studies
  • Second click on the toggle icon
Allow Notification
Get latest Exam Updates & FREE Study Material Alerts!
Self Studies ×
Open Now