Biology Practice Question and Answer

Q:

The epithelial tissue covers:

327 0

  • 1
    External surface of human body
    Correct
    Wrong
  • 2
    Internal surface of blood vessels
    Correct
    Wrong
  • 3
    Luminal surface of visceral organs
    Correct
    Wrong
  • 4
    All of these
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Luminal surface of visceral organs"

Q:

If the head of cockroach is removed, it may live for few days because :

480 0

  • 1
    The supra-oesophageal ganglia of the cockroach are situated in ventral part of abdomen.
    Correct
    Wrong
  • 2
    The cockroach does not have nervous system.
    Correct
    Wrong
  • 3
    Head holds a small proportion of nervous system while restis situated along ventral part of its body
    Correct
    Wrong
  • 4
    The head holds 1/3rd of the nervous system while the rest is situated along dorsal part of its body.
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "The head holds 1/3rd of the nervous system while the rest is situated along dorsal part of its body."

Q:

Consider following features:

(a) Organ system level of organization

(b) Bilateral symmetry  
 (c) True coelomates with segmentation of body

Select the correct option of animal groups which possess all the above characteristics.

491 0

  • 1
    Annelida, Arthropoda and Chordata
    Correct
    Wrong
  • 2
    Annelida, Arthropoda and Mollusca
    Correct
    Wrong
  • 3
    Arthropoda, Mollusca and Chordata
    Correct
    Wrong
  • 4
    Annelida, Mollusca and Chordata
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Annelida, Arthropoda and Chordata "

Q:

What is the effect of Oxytocin produced by hypothalamus?

407 0

  • 1
    Stimulates the synthesis and secretion of androgens
    Correct
    Wrong
  • 2
    Stimulates formation of milk in mammary glands
    Correct
    Wrong
  • 3
    Stimulates a vigorous myometrial contraction at the time of childbirth
    Correct
    Wrong
  • 4
    Stimulates synthesis of carbohydrates from non-carbohydrates in liver
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 3. "Stimulates a vigorous myometrial contraction at the time of childbirth"

Q:

Which of the following is true about

Atrial Natriuretic Factor :

1) Peptide hormone 2) Increases blood pressure 3) Reduces blood pressure 4) Vaso constrictor 5) Cause vasodialation

420 0

  • 1
    1, 2 and 4 are true
    Correct
    Wrong
  • 2
    1,3 and 5 are true
    Correct
    Wrong
  • 3
    2 and 4 are true
    Correct
    Wrong
  • 4
    5 only is true
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "1,3 and 5 are true "

Q:

A fall in glomerular filtration rate (GFR) activates

782 0

  • 1
    Juxta glomerular cells to release renin
    Correct
    Wrong
  • 2
    Adrenal cortex to release aldosterone
    Correct
    Wrong
  • 3
    Adrenal medulla to release adrenaline
    Correct
    Wrong
  • 4
    Posterior pituitary to release vasopressin
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 1. "Juxta glomerular cells to release renin"

Q:

What is the osmolarity(in mO smolL–1) in the outer cortex and inner medullary region?

395 0

  • 1
    300 and 900 respectively
    Correct
    Wrong
  • 2
    600 and 300 respectively
    Correct
    Wrong
  • 3
    1200 and 300 respectively
    Correct
    Wrong
  • 4
    300 and 1200 respectively
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 4. "300 and 1200 respectively"

Q:

Which one is the first heart sound?

475 0

  • 1
    Lub during closure semilunar valves
    Correct
    Wrong
  • 2
    Lub during closure of atrio-ventricular valves
    Correct
    Wrong
  • 3
    Dub during closure of atrio- ventricular valves
    Correct
    Wrong
  • 4
    Dub during closure of semilunarvaleves
    Correct
    Wrong
  • Show AnswerHide Answer
  • Workspace

Answer : 2. "Lub during closure of atrio-ventricular valves"

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully

      Report Error

    Please Enter Message
    Error Reported Successfully